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NCERT Solutions for Class 10 Science Chapter 10 Light Reflection and Refraction

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NCERT Solutions for Class 10 Science Chapter 10 Light Reflection and Refraction

Edited By Vishal kumar | Updated on Jul 19, 2023 11:22 AM IST | #CBSE Class 10th

NCERT Solutions Class 10 Science Chapter 10 – CBSE Free PDF Download

NCERT Solutions for Class 10 Science Chapter 10 Light Reflection and Refraction -If you are in search of NCERT Class 10 Science Chapter 10 Exercise Solutions- Light Reflection and Refraction, look no further. This article provides comprehensive step-by-step solutions that will assist you in completing exercise questions and assignments. Light class 10 ncert solutions reflection and Refraction, being an essential and straightforward chapter in Class 10, often contains 3-4 questions in board examinations.

In addition to NCERT Solutions, experts at Careers360 have compiled a valuable collection of chapter-wise important formulas. These formulas serve as a valuable resource for students, aiding in revision during exams and enabling them to solve questions from the NCERT textbook or any other reference book.

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By reading this article, you will gain access to easy-to-understand, step-by-step solutions for each question in the chapter reflection of light class 10. Alternatively, you can download the class 10 science chapter 10 question answer and important formulas in the form of a PDF, allowing you to access them offline at any time and from anywhere, absolutely free of cost.

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NCERT Solutions for Class 10 Science: Important Formulas and Diagrams + eBook link

To solve all the questions or understand each concept in detail of any chapter, it is essential to know the important formulas associated with that chapter. The subject matter experts at Careers360 have compiled all the important formulas of this light class 10 ncert solutions, which are provided below. Additionally, you can find the chapter-wise important formulas of Class 10 Science by clicking on the link given below and downloading the PDF for free.

  • Law of Reflection:

JEE Main Important Physics formulas

As per latest 2024 syllabus. Physics formulas, equations, & laws of class 11 & 12th chapters

Angle of incidence (θᵢ) = Angle of reflection (θᵣ)

  • Snell's Law:

n₁sin(θ₁) = n₂sin(θ₂)

Where, n₁ and n₂ are the refractive indices of the initial and final media, respectively, and θ₁ and θ₂ are the corresponding angles of incidence and refraction.

  • Mirror formula:

1/v+1/u=1f

  • Lens Formula:

1/v-1/u=1/f

  • Magnification by a spherical mirror:

m= hi/ho=-v/u

Where:

hi = Height of image and ho=Height of object

By having access to these formulas of ncert class 10 science chapter 10 exercise solutions, you can enhance your understanding of the chapter and confidently tackle various questions and problems. These formulas serve as valuable tools for revision and assist you in applying the concepts effectively.

Class 10 Science ch 10 Question Answer Light Reflection and Refraction - Important Topics

If you're aiming to score well in ncert class 10 science chapter 10 exercise solutions, focusing on these important topics of light reflection and refraction will greatly assist you. By dedicating your study efforts to these specific areas, you can maximize your understanding and performance, ultimately increasing your chances of achieving good marks.

  • Reflection of light: Understanding the laws of reflection of light class 10 ncert solutions, types of reflection, and image formation by plane mirrors.
  • Refraction of light: Grasping the laws of refraction, refractive index, and image formation by lenses.
  • Spherical mirrors: Learning about the types of spherical mirrors, image formation by spherical mirrors, and the mirror formula.
  • Lenses: Familiarize yourself with the types of lenses, image formation by lenses, and the lens formula.
  • Applications of light: Exploring the practical applications of light in photography, optical instruments, and fibre optics.

Additionally, pay attention to these important concepts of class 10 science chapter 10 question answer:

  • Rectilinear propagation of light: Understanding how light travels in a straight line.
  • Real and virtual images: Differentiating between real and virtual images.
  • Magnification: Grasping how the size of an image is affected by the object-to-mirror or object-to-lens distance.
  • Sign convention: Understanding the convention used to represent distances in ray diagrams.

By reading these concepts of class 10th science chapter 10 question answer students can revise the chapter in less time and score good marks in exams.

This chapter has been renumbered as Chapter 9 in accordance with the CBSE Syllabus 2023–24.

NCERT Solutions for Class 10 Science Chapter 10 Light Reflection and Refraction

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NCERT Solutions For Class 10 science ch 10 NCERT Solutions Light Reflection and Refraction

Topic 10.2 Spherical Mirrors

Q.1 Define the principal focus of a concave mirror.

Answer:

It is the point on the principal axis where a beam of light parallel to the principal axis after reflection actually meets.

1635754101788

F represents the focal length

Q.2 The radius of curvature of a spherical mirror is 20 cm. What is its focal length?

Answer:

focal\:length=\frac{Radius }{2}

So,

focal\:length=\frac{20}{2}=10cm

Hence the Focal length of the spherical mirror is 10 cm.

Q.3 Name a mirror that can give an erect and enlarged image of an object.

Answer:

Convex mirror usually gives a virtual and erect image.

The concave mirror gives a virtual and enlarged image only when the object is between pole and focus.

Q.4 Why do we prefer a convex mirror as a rear-view mirror in vehicles?

Answer :

Convex mirrors are preferred as a rearview mirror in vehicles as:

i) It forms an erect (Rigidly upright or straight.) image of an object hence object becomes easily identified.

ii) It forms a diminished image of the object thus increases the field of vision.

iii) An object that is far away from us is seen closer which helps us to take early decisions while driving.

CBSE Class 10 Science ch 10 Question Answer Light

Topic 10.2.4 Mirror forumula and magnification

Q.1 Find the focal length of a convex mirror whose radius of curvature is 32 cm .

Answer:

As we know for the convex mirror,

Radius (R) = Focus (f) X 2

So,

f=\frac{R}{2}

putting the given values,

f=\frac{30}{2}=15cm

Hence Focus of the convex mirror is 15 cm.

Q. 2 A concave mirror produces three times magnified (enlarged) real image of an object placed at 10 cm in front of it. Where is the image located?

Answer:

Here Given Magnification:

m= -3 (real image)

The object distance :

u =-10cm

Now As we know,

m=-\frac{v}{u}

v = - m\times u

v = - (-3)\times(-10)

v = -30cm

Hence,

The image is 30 cm in front of the mirror.

NCERT Textbook Solutions for Light Class 10 Science Chapter

Topic 10.3 Refraction of light

Q.1 A ray of light traveling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?

Answer:

As we know that when the light goes from rare medium to denser medium the light bends towards the normal. So when the light goes from air to water it will bend toward the normal.

Q. 2 Light enters from air to glass having a refractive index 1.50 . What is the speed of light in the glass? The speed of light in a vacuum is 3 \times 108\: m\: s^1 .

Answer:

As we know, from the definition of the refractive index that

Refractive Index :

\mu=\frac{c}{v}

Where = Velocity of light in the medium and

c = Speed of light in vacuum

So putting those given values we get,

1.5 = \frac{3\times10^ {8}}{v}

v=\frac{3\times10^8}{1.5}

v= 2\times10^8m/s

Hence the speed of the light in the glass is 2\times10^8m/s .

Q.3 Find out, from Table 10.3, the medium having highest optical density. Also, find the medium with the lowest optical density.


Material Medium Refractive Index Material Medium Refractive Index
Air
Ice
water
Alcohol
Kerosene
Fused Quartz
Turpentine oil
Benzene
Crown Glass

1.0003
1.31
1.33
1.36
1.44
1.46
1.47
1.50
1.52
Canada Balsam
Rock Salt
Carbon-Disulphide
Dense Flint Glass
Ruby
Sapphire
Diamond
1.53
1.54
1.63
1.65
1.71
1.77
2.42

Answer :

As we know optical density is the tendency to hold(absorb) the light. So,

more refractive index = more absorbing power = more optical density.

It can be observed from table 10.3 that diamond and air respectively have the highest and lowest refractive index. Therefore, diamond has the highest optical density and air has the lowest optical density.

Q.4 You are given kerosene, turpentine, and water. In which of these does the light travel fastest? Use the information given in Table 10.3 .

Material Medium Refractive Index Material Medium Refractive Index
Air
Ice
water
Alcohol
Kerosene
Fused Quartz
Turpentine oil
Benzene
Crown Glass

1.0003
1.31
1.33
1.36
1.44
1.46
1.47
1.50
1.52
Canada Balsam
Rock Salt
Carbon-Disulphide
Dense Flint Glass
Ruby
Sapphire
Diamond
1.53
1.54
1.63
1.65
1.71
1.77
2.42

Answer:

As we can see from the table:

Refractive index of kerosene = 1.44

Refractive index of terbutaline = 1.47

Refractive index of water = 1.33

We know from the definition of refractive index, that the speed of light is higher in a medium with the lower refractive index.

So, the light travels fastest in water relative to kerosene and turpentine.

speed of light---> water > kerosene > turpentine

Q.5 The refractive index of diamond is 2.42. What is the meaning of this statement?

Answer:

Refractive Index shows the comparison of light speeds in two mediums. Light may travel from rarer to denser medium or from denser to rarer medium. When we say the refractive index of diamond is 2.42, it means light is traveling from rarer to a denser medium, and the speed of light in the air (vacuum) is 2.42 times the speed of light in a diamond. On the other hand, if the light travels from denser to rarer medium, that is, from diamond to air the refractive index will be the reciprocal of 2.42.


Topic 10.3.8 Power of Lenses

Q.1 Define 1 dioptre of power of a lens.

Answer:

A lens whose focal length is 1 metre is said to have the power of 1 dioptre.

Q.2 A convex lens forms a real and inverted image of a needle at a distance of 50 cm from it. Where is the needle placed in front of the convex lens if the image is equal to the size of the object? Also, find the power of the lens .

Answer:

Since the image formed by the lens is real and inverted it is formed on the side opposite to the one where the object is placed.

Image position v = 50 cm

Let the object position be u.

Since image formed is inverted and the size image is equal to the size of the object, magnification (m) = -1.

\\m=\frac{v}{u}\\ -1=\frac{v}{u}\\ u=-v\\ u=-50\ cm

The needle is placed 50 cm in front of the lens

Using lens formula we have

\\\frac{1}{f}=\frac{1}{v}-\frac{1}{u}\\ \frac{1}{f}=\frac{1}{50}-\frac{1}{-50}\\ \frac{1}{f}=\frac{2}{50}\\ f=25\ cm

Power of the lens P is given by

\\P=\frac{1}{f}\\ P=\frac{1}{25\times 10^{-2}}\\ P=4\ D

The power of the lens P is 4 Dioptre.

Q.3 Find the power of a concave lens of focal length 2 m.

Answer:

The focal length of the lens is f = -2 m. (The focal length of a concave lens is negative)

Power of the lens P is given by

\\P=\frac{1}{f}\\ P=\frac{1}{-2}\\ P=-0.5\ D

The Power of the lens is - 0.5 Dioptre.

NCERT Class 10 Science Chapter 10 Light Reflection and Refraction: Exercise Solutions

Q1. Which one of the following materials cannot be used to make a lens?


(a) Water (b) Glass (c) Plastic (d) Clay

Answer:

Clay cannot be used to make a lens.

(d) is the correct answer.

Q 2. The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?


(a) Between the principal focus and the centre of curvature
(b) At the centre of curvature
(c) Beyond the centre of curvature
(d) Between the pole of the mirror and its principal focus.

Answer:

The position of the object should be between the pole of the mirror and its principal focus.

(d) is the correct answer.

Q 3. Where should an object be placed in front of a convex lens to get a real image of the size of the object?

(a) At the principal focus of the lens
(b) At twice the focal length
(c) At infinity
(d) Between the optical centre of the lens and its principal focus.

Answer:

An object should be placed at twice the focal length in front of a convex lens to get a real image of the size of the object

(b) is the correct answer.

Q 4 . A spherical mirror and a thin spherical lens have each a focal length of –15 cm. The mirror and the lens are likely to be

(a) both concave.

(b) both convex.

(c) the mirror is concave and the lens is convex.

(d) the mirror is convex, but the lens is concave.

Answer:

The mirror and the lens are both concave.

(a) is the correct answer.

Q 5. No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be

(a) only plane.
(b) only concave.
(c) only convex.
(d) either plane or convex.

Answer:

The mirror is likely to be either plane or convex.

(d) is the correct answer.

Q 6. Which of the following lenses would you prefer to use while reading small letters found in a dictionary?

(a) A convex lens of focal length 50 cm.
(b) A concave lens of focal length 50 cm.
(c) A convex lens of focal length 5 cm.
(d) A concave lens of focal length 5 cm.

Answer:

I would prefer to use a convex lens of focal length 5 cm while reading small letters found in a dictionary because a convex lens gives magnified image if the object is in between focus and radius of curvature and the magnification will be high for shorter focal length

(c) is the correct answer.

Q 7. We wish to obtain an erect image of an object, using a concave mirror of focal length 15 cm. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case.

Answer:

\\\frac{1}{f}=\frac{1}{v}+\frac{1}{u}\\ v=\frac{fu}{u-f}

For the image to be erect it has to be virtual and therefore as per convention v has to be positive

v > 0

\frac{fu}{u-f}>0

u < 0

f < 0

fu > 0

u - f > 0

u > f

Therefore the object must be placed between the pole and focus of the mirror.

i.e -15 cm < u < 0

The image formed would be virtual and larger than the object.


1635754149924

Q 8.(a) Name the type of mirror used in the following situations.

  • Headlights of a car.

Support your answer with reason.

Answer:

A concave mirror is used for headlights of a car as they can produce parallel beams of high intensity which can travel through large distances if the source of light is placed at the focus of the mirror.

Q 8.b) Name the type of mirror used in the following situations.

  • Side/rear-view mirror of a vehicle

Support your answer with reason.

Answer:

The convex mirror would be used as a side/rear-view mirror of a vehicle as the image produced will be erect, virtual and diminished. A convex mirror also has a larger field of view as compared to a plane mirror of the same size.

Q 8.c) Name the type of mirror used in the following situations.

  • Solar furnace.

Support your answer with reason.

Answer:

The concave mirror would be used in a solar furnace to concentrate the incident rays from the sun on a solar panel.

Q 9. One-half of a convex lens is covered with a black paper. Will this lens produce a complete image of the object? Verify your answer experimentally. Explain your observations.

Answer:

The lens would produce a complete image. Only the brightness of the image would be diminished.

Verification by experiment:

Apparatus required: a convex lens, a screen, and a candlelight

procedure:

1. Place screen behind a lens placed vertically

2. Move the candle to obtain a clear full-length image of a candle on the screen

3. Cover half of the lens with the black paper without disturbing the position of the lens

4. Note the observations

Observation: Size of the image is the same but the brightness reduces

Q 10. An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and nature of the image formed.

Answer:

Object distance u = -25 cm.

Focal length = 10 cm

Let image distance be v

\\\frac{1}{f}=\frac{1}{v}+\frac{1}{u}\\ \frac{1}{10}=\frac{1}{v}+\frac{1}{-25}\\ \frac{1}{v}=\frac{1}{10}+\frac{1}{25}\\ v=16. 66\ cm

The position of the image is 16.66 cm on the other side of the lens.

Object size O = 5 cm.

Let the image size be I

Magnification is m

\\m=\frac{v}{u}\\ \frac{I}{O}=\frac{16.66}{-25}\\ I=5\times -\frac{16.66}{25}\\ I=-3.33\ cm

The nature of the image is real and its size is -3.33 cm.

The formation of the image is shown in the following ray diagram

1635754193377


Q 11. A concave lens of focal length 15 cm forms an image 10 cm from the lens. How far is the object placed from the lens? Draw the ray diagram.

Answer:

Focal length, f = -15 cm

Image distance, v = -10 cm ( As in case of the concave lens image is formed on the same side as the object is placed)

Let the object distance be u.

As per the lens formula

\\\frac{1}{f}=\frac{1}{v}-\frac{1}{u}\\ \frac{1}{u}=\frac{1}{v}-\frac{1}{f}\\ \frac{1}{u}=\frac{1}{-10}-\frac{1}{-25}\\ v=-30\ cm

The object is placed at a distance of 30 cm from the lens.

1635754225039

Q 12. An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image.

Answer:

Object distance, u = -10 cm

Focal length, f = 15 cm

Let the image distance be v

As per the mirror formula

\\\frac{1}{f}=\frac{1}{v}+\frac{1}{u}\\ \frac{1}{15}=\frac{1}{v}+\frac{1}{-10}\\ v=6\ cm

\\Magnification=-\frac{v}{u}\\ =-\frac{6}{-30}\\ =0.2

The image formed is virtual, erect, diminished and is formed 6 cm behind of the mirror.

Q 13. The magnification produced by a plane mirror is +1. What does this mean?

Answer:

It means the image formed is virtual, erect and of the same size as the object.

Q 14. An object 5.0 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image, its nature, and size .

Answer:

Radius of curvature, R = 30 cm

Focal length, f = R/2 = 15 cm

Object distance, u = -20 cm

Let the image distance be v

\\\frac{1}{f}=\frac{1}{v}+\frac{1}{u}\\ \frac{1}{15}=\frac{1}{v}+\frac{1}{-20}\\ v=8.57\ cm

Since v is positive image is formed behind the mirror.

\\Magnification=-\frac{v}{u}\\ =-\frac{8.57}{-20}\\ =0.428

Object size = 5 cm

\\Image \ size= Object\ size \times Magnification\\ =5\times 0.428\\ =2.14\ cm

A virtual, erect and diminished image of size 2.14 cm would be formed 8.57 cm behind the mirror.

Q 15. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharply focussed image can be obtained? Find the size and nature of the image.

Answer:

Object distance, u = -27 cm

Focal length, f = -18 cm

Let the image distance be v

As per the mirror formula

\\\frac{1}{f}=\frac{1}{v}+\frac{1}{u}\\ \frac{1}{-18}=\frac{1}{v}+\frac{1}{-27}\\ v=-54\ cm

The negative sign shows the image is formed in front of the mirror and is real.

Object size = 7 cm

\\Image\ size=magnification\times Object\ size\\ =-\frac{v}{u}\times O\\ =-\frac{-54}{-27}\times 7\\ =-14\ cm

A real, inverted and magnified image of size 14 cm is formed in front of the mirror.

Q 16. Find the focal length of a lens of power – 2.0 D. What type of lens is this?

Answer:

\\f=\frac{1}{P}\\ f=\frac{1}{-2}\\ f=-0.5\ m\\ f=-50\ cm

The lens is concave because it's focal length is negative and is equal to -50 cm.

Q 17 . A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?

Answer:

\\f=\frac{1}{P}\\ f=\frac{1}{1.5}\\ f=0.6667\ m\\ f=66.67\ cm

The less is convex because its focal length is positive and therefore is converging.

NCERT Solutions for Class 10 for other subjects

NCERT Solutions for Class 10 Science Chapter 10 Light Reflection and Refraction - Topics

Apart from the important topics we mentioned above in this article, there are a total of 16 topics of class 10 science ch 10 ncert solutions which are listed below:

10.1 Reflection of Light

10.2 Spherical Mirrors

10.2.1 Image Formation by Spherical Mirrors

10.2.2 Representation of Images Formed by Spherical Mirrors Using ray Diagrams

10.2.3 Sign Convention for Reflection by Spherical Mirrors

10.2.4 Mirror Formula and Magnification

10.3 Reflection of Light

10.3.1 Reflection through a Rectangular Glass Slab

10.3.2 The Refractive Index

10.3.3 Reflection by Spherical Lenses

10.3.4 Image Formation by Lenses

10.3.5 Image Formation in Lenses using Ray Diagrams

10.3.6 Sign Convention for Spherical Lenses

10.3.7 Lenses Formula and Magnification

10.3.8 Power of a lens

Key features of chapter 10 science class 10 exercise answers Light Reflection and Refraction

Easy to understand: The class 10 science chapter 10 question answer are designed to be easy and thorough, allowing students to gain a deeper understanding of the solutions and concepts of light reflection and refraction.

Score well in board exams: By utilizing the light reflection and refraction class 10 exercise answers, students can enhance their understanding of the chapter light class 10 and improve their performance in the CBSE board exams. The ncert class 10 science chapter 10 exercise solutions provide clarity on important topics and offer effective strategies for solving questions.

Comprehensive exercise questions: The NCERT solutions of chapter 10 science class 10 provide answers to the exercise questions given in the textbook, ensuring that students have a clear understanding of the concepts. Additionally, there are additional exercise questions included, allowing students to practice and reinforce their knowledge.

Expert guidance: The NCERT solutions for reflection of light class 10 Science are prepared by subject matter experts. In case of any doubts or queries, students can directly reach out to the experts for clarification and guidance, ensuring a thorough understanding of the topics covered in the chapter.

Offline Benefits: Class 10 science ch 10 NCERT Solutions are available in the form of PDF, students can download them and use them offline.

How to use NCERT Solutions for Class 10 Science Chapter 10 Light Reflection and Refraction

  • Firstly, it is essential to know the complete NCERT syllabus and clear all your concepts related to the given chapter.

  • Afterwards, practice the class 10th science chapter 10 question answer on your own. If you find it difficult to solve, then take help from the Light Reflection And Refraction Class 10 Science solutions.

  • Practice from previous year question papers or sample question papers to have a look at what type of questions were asked previously.

Also, Check NCERT Books and NCERT Syllabus here:

NCERT Solutions for Class 10 Science- Chapter Wise


NCERT Science Exemplar Solutions Class 10 - Chapter Wise

NCERT Science Exemplar Solutions Class 10 For All The Chapters:

Frequently Asked Question (FAQs)

1. What are the important topics of Class 10 Science Chapter 10 Light Reflection and Refraction?

Centre of Curvature, Principal Axis, Principal Focus, Focal Length, Images Formed by Spherical Mirrors, Mirror formula & Magnification, Refractive index, Refraction & Laws of refraction, Lens Formula & Magnification, Power of a lens.

2. How can I get the PDF of NCERT solutions for Class 10 Chapter 10 pdf?

NCERT solutions class 10 Science chapter 10 pdf download button available. By downloading you can save the webpage to check solutions offline.

3. What is the weightage of Chapter 10 Light Reflection and Refraction in CBSE class 10 board final exam?

6-7 marks. All the formulas and raydiagrams of the chapter are important. To get more problems of Light Reflection and Refraction refer to CBSE previous year papers, NCERT book and NCERT exemplar for Class 10.

4. What are the benefits of referring the Caerres360 NCERT Solutions for Class 10 Science Chapter 10?

Advantages of using Careers360 NCERT Solutions for reflection of light class 10:

  • The in-depth explanation for better understanding of concepts.

  • Aligned with the CBSE syllabus.

  • Authentic and precise for improving problem-solving skills.

  • Free PDF downloads for easy access by students.

5. What are the topics and question count of NCERT Solutions for Class 10 Science Light Reflection and Refraction?

Topics in NCERT Solutions for class 10 light reflection and refraction:

  • Light Reflection

  • Spherical Mirrors

  • Image Formation with Spherical Mirrors

  • Ray Diagrams for Mirror Image Representation (4 questions)

  • Mirror Formula and Magnification (2 questions)

  • Light Refraction (5 questions)

  • Lens Power (3 questions)

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A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Option 1)

0.34\; J

Option 2)

0.16\; J

Option 3)

1.00\; J

Option 4)

0.67\; J

A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times.  Assume that the potential energy lost each time he lowers the mass is dissipated.  How much fat will he use up considering the work done only when the weight is lifted up ?  Fat supplies 3.8×107 J of energy per kg which is converted to mechanical energy with a 20% efficiency rate.  Take g = 9.8 ms−2 :

Option 1)

2.45×10−3 kg

Option 2)

 6.45×10−3 kg

Option 3)

 9.89×10−3 kg

Option 4)

12.89×10−3 kg

 

An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

Option 1)

2,000 \; J - 5,000\; J

Option 2)

200 \, \, J - 500 \, \, J

Option 3)

2\times 10^{5}J-3\times 10^{5}J

Option 4)

20,000 \, \, J - 50,000 \, \, J

A particle is projected at 600   to the horizontal with a kinetic energy K. The kinetic energy at the highest point

Option 1)

K/2\,

Option 2)

\; K\;

Option 3)

zero\;

Option 4)

K/4

In the reaction,

2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}

Option 1)

11.2\, L\, H_{2(g)}  at STP  is produced for every mole HCL_{(aq)}  consumed

Option 2)

6L\, HCl_{(aq)}  is consumed for ever 3L\, H_{2(g)}      produced

Option 3)

33.6 L\, H_{2(g)} is produced regardless of temperature and pressure for every mole Al that reacts

Option 4)

67.2\, L\, H_{2(g)} at STP is produced for every mole Al that reacts .

How many moles of magnesium phosphate, Mg_{3}(PO_{4})_{2} will contain 0.25 mole of oxygen atoms?

Option 1)

0.02

Option 2)

3.125 × 10-2

Option 3)

1.25 × 10-2

Option 4)

2.5 × 10-2

If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

Option 1)

decrease twice

Option 2)

increase two fold

Option 3)

remain unchanged

Option 4)

be a function of the molecular mass of the substance.

With increase of temperature, which of these changes?

Option 1)

Molality

Option 2)

Weight fraction of solute

Option 3)

Fraction of solute present in water

Option 4)

Mole fraction.

Number of atoms in 558.5 gram Fe (at. wt.of Fe = 55.85 g mol-1) is

Option 1)

twice that in 60 g carbon

Option 2)

6.023 × 1022

Option 3)

half that in 8 g He

Option 4)

558.5 × 6.023 × 1023

A pulley of radius 2 m is rotated about its axis by a force F = (20t - 5t2) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg m2 , the number of rotations made by the pulley before its direction of motion if reversed, is

Option 1)

less than 3

Option 2)

more than 3 but less than 6

Option 3)

more than 6 but less than 9

Option 4)

more than 9

Bio Medical Engineer

The field of biomedical engineering opens up a universe of expert chances. An Individual in the biomedical engineering career path work in the field of engineering as well as medicine, in order to find out solutions to common problems of the two fields. The biomedical engineering job opportunities are to collaborate with doctors and researchers to develop medical systems, equipment, or devices that can solve clinical problems. Here we will be discussing jobs after biomedical engineering, how to get a job in biomedical engineering, biomedical engineering scope, and salary. 

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Data Administrator

Database professionals use software to store and organise data such as financial information, and customer shipping records. Individuals who opt for a career as data administrators ensure that data is available for users and secured from unauthorised sales. DB administrators may work in various types of industries. It may involve computer systems design, service firms, insurance companies, banks and hospitals.

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Ethical Hacker

A career as ethical hacker involves various challenges and provides lucrative opportunities in the digital era where every giant business and startup owns its cyberspace on the world wide web. Individuals in the ethical hacker career path try to find the vulnerabilities in the cyber system to get its authority. If he or she succeeds in it then he or she gets its illegal authority. Individuals in the ethical hacker career path then steal information or delete the file that could affect the business, functioning, or services of the organization.

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Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

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Geothermal Engineer

Individuals who opt for a career as geothermal engineers are the professionals involved in the processing of geothermal energy. The responsibilities of geothermal engineers may vary depending on the workplace location. Those who work in fields design facilities to process and distribute geothermal energy. They oversee the functioning of machinery used in the field.

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Remote Sensing Technician

Individuals who opt for a career as a remote sensing technician possess unique personalities. Remote sensing analysts seem to be rational human beings, they are strong, independent, persistent, sincere, realistic and resourceful. Some of them are analytical as well, which means they are intelligent, introspective and inquisitive. 

Remote sensing scientists use remote sensing technology to support scientists in fields such as community planning, flight planning or the management of natural resources. Analysing data collected from aircraft, satellites or ground-based platforms using statistical analysis software, image analysis software or Geographic Information Systems (GIS) is a significant part of their work. Do you want to learn how to become remote sensing technician? There's no need to be concerned; we've devised a simple remote sensing technician career path for you. Scroll through the pages and read.

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Geotechnical engineer

The role of geotechnical engineer starts with reviewing the projects needed to define the required material properties. The work responsibilities are followed by a site investigation of rock, soil, fault distribution and bedrock properties on and below an area of interest. The investigation is aimed to improve the ground engineering design and determine their engineering properties that include how they will interact with, on or in a proposed construction. 

The role of geotechnical engineer in mining includes designing and determining the type of foundations, earthworks, and or pavement subgrades required for the intended man-made structures to be made. Geotechnical engineering jobs are involved in earthen and concrete dam construction projects, working under a range of normal and extreme loading conditions. 

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Cartographer

How fascinating it is to represent the whole world on just a piece of paper or a sphere. With the help of maps, we are able to represent the real world on a much smaller scale. Individuals who opt for a career as a cartographer are those who make maps. But, cartography is not just limited to maps, it is about a mixture of art, science, and technology. As a cartographer, not only you will create maps but use various geodetic surveys and remote sensing systems to measure, analyse, and create different maps for political, cultural or educational purposes.

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Budget Analyst

Budget analysis, in a nutshell, entails thoroughly analyzing the details of a financial budget. The budget analysis aims to better understand and manage revenue. Budget analysts assist in the achievement of financial targets, the preservation of profitability, and the pursuit of long-term growth for a business. Budget analysts generally have a bachelor's degree in accounting, finance, economics, or a closely related field. Knowledge of Financial Management is of prime importance in this career.

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Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

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Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

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Investment Banker

An Investment Banking career involves the invention and generation of capital for other organizations, governments, and other entities. Individuals who opt for a career as Investment Bankers are the head of a team dedicated to raising capital by issuing bonds. Investment bankers are termed as the experts who have their fingers on the pulse of the current financial and investing climate. Students can pursue various Investment Banker courses, such as Banking and Insurance, and Economics to opt for an Investment Banking career path.

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Underwriter

An underwriter is a person who assesses and evaluates the risk of insurance in his or her field like mortgage, loan, health policy, investment, and so on and so forth. The underwriter career path does involve risks as analysing the risks means finding out if there is a way for the insurance underwriter jobs to recover the money from its clients. If the risk turns out to be too much for the company then in the future it is an underwriter who will be held accountable for it. Therefore, one must carry out his or her job with a lot of attention and diligence.

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Finance Executive
3 Jobs Available
Operations Manager

Individuals in the operations manager jobs are responsible for ensuring the efficiency of each department to acquire its optimal goal. They plan the use of resources and distribution of materials. The operations manager's job description includes managing budgets, negotiating contracts, and performing administrative tasks.

3 Jobs Available
Welding Engineer

Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues. 

5 Jobs Available
Transportation Planner

A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.

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Plumber

An expert in plumbing is aware of building regulations and safety standards and works to make sure these standards are upheld. Testing pipes for leakage using air pressure and other gauges, and also the ability to construct new pipe systems by cutting, fitting, measuring and threading pipes are some of the other more involved aspects of plumbing. Individuals in the plumber career path are self-employed or work for a small business employing less than ten people, though some might find working for larger entities or the government more desirable.

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Construction Manager

Individuals who opt for a career as construction managers have a senior-level management role offered in construction firms. Responsibilities in the construction management career path are assigning tasks to workers, inspecting their work, and coordinating with other professionals including architects, subcontractors, and building services engineers.

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Urban Planner

Urban Planning careers revolve around the idea of developing a plan to use the land optimally, without affecting the environment. Urban planning jobs are offered to those candidates who are skilled in making the right use of land to distribute the growing population, to create various communities. 

Urban planning careers come with the opportunity to make changes to the existing cities and towns. They identify various community needs and make short and long-term plans accordingly.

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Highway Engineer

Highway Engineer Job Description: A Highway Engineer is a civil engineer who specialises in planning and building thousands of miles of roads that support connectivity and allow transportation across the country. He or she ensures that traffic management schemes are effectively planned concerning economic sustainability and successful implementation.

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Environmental Engineer

Individuals who opt for a career as an environmental engineer are construction professionals who utilise the skills and knowledge of biology, soil science, chemistry and the concept of engineering to design and develop projects that serve as solutions to various environmental problems. 

2 Jobs Available
Naval Architect

A Naval Architect is a professional who designs, produces and repairs safe and sea-worthy surfaces or underwater structures. A Naval Architect stays involved in creating and designing ships, ferries, submarines and yachts with implementation of various principles such as gravity, ideal hull form, buoyancy and stability. 

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Orthotist and Prosthetist

Orthotists and Prosthetists are professionals who provide aid to patients with disabilities. They fix them to artificial limbs (prosthetics) and help them to regain stability. There are times when people lose their limbs in an accident. In some other occasions, they are born without a limb or orthopaedic impairment. Orthotists and prosthetists play a crucial role in their lives with fixing them to assistive devices and provide mobility.

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Speech Therapist
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Gynaecologist

Gynaecology can be defined as the study of the female body. The job outlook for gynaecology is excellent since there is evergreen demand for one because of their responsibility of dealing with not only women’s health but also fertility and pregnancy issues. Although most women prefer to have a women obstetrician gynaecologist as their doctor, men also explore a career as a gynaecologist and there are ample amounts of male doctors in the field who are gynaecologists and aid women during delivery and childbirth. 

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Oncologist

An oncologist is a specialised doctor responsible for providing medical care to patients diagnosed with cancer. He or she uses several therapies to control the cancer and its effect on the human body such as chemotherapy, immunotherapy, radiation therapy and biopsy. An oncologist designs a treatment plan based on a pathology report after diagnosing the type of cancer and where it is spreading inside the body.

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Audiologist

The audiologist career involves audiology professionals who are responsible to treat hearing loss and proactively preventing the relevant damage. Individuals who opt for a career as an audiologist use various testing strategies with the aim to determine if someone has a normal sensitivity to sounds or not. After the identification of hearing loss, a hearing doctor is required to determine which sections of the hearing are affected, to what extent they are affected, and where the wound causing the hearing loss is found. As soon as the hearing loss is identified, the patients are provided with recommendations for interventions and rehabilitation such as hearing aids, cochlear implants, and appropriate medical referrals. While audiology is a branch of science that studies and researches hearing, balance, and related disorders.

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The hospital Administrator is in charge of organising and supervising the daily operations of medical services and facilities. This organising includes managing of organisation’s staff and its members in service, budgets, service reports, departmental reporting and taking reminders of patient care and services.

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Actor

For an individual who opts for a career as an actor, the primary responsibility is to completely speak to the character he or she is playing and to persuade the crowd that the character is genuine by connecting with them and bringing them into the story. This applies to significant roles and littler parts, as all roles join to make an effective creation. Here in this article, we will discuss how to become an actor in India, actor exams, actor salary in India, and actor jobs. 

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Acrobat

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Video Game Designer

Career as a video game designer is filled with excitement as well as responsibilities. A video game designer is someone who is involved in the process of creating a game from day one. He or she is responsible for fulfilling duties like designing the character of the game, the several levels involved, plot, art and similar other elements. Individuals who opt for a career as a video game designer may also write the codes for the game using different programming languages.

Depending on the video game designer job description and experience they may also have to lead a team and do the early testing of the game in order to suggest changes and find loopholes.

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Radio Jockey

Radio Jockey is an exciting, promising career and a great challenge for music lovers. If you are really interested in a career as radio jockey, then it is very important for an RJ to have an automatic, fun, and friendly personality. If you want to get a job done in this field, a strong command of the language and a good voice are always good things. Apart from this, in order to be a good radio jockey, you will also listen to good radio jockeys so that you can understand their style and later make your own by practicing.

A career as radio jockey has a lot to offer to deserving candidates. If you want to know more about a career as radio jockey, and how to become a radio jockey then continue reading the article.

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Choreographer

The word “choreography" actually comes from Greek words that mean “dance writing." Individuals who opt for a career as a choreographer create and direct original dances, in addition to developing interpretations of existing dances. A Choreographer dances and utilises his or her creativity in other aspects of dance performance. For example, he or she may work with the music director to select music or collaborate with other famous choreographers to enhance such performance elements as lighting, costume and set design.

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Videographer
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Multimedia Specialist

A multimedia specialist is a media professional who creates, audio, videos, graphic image files, computer animations for multimedia applications. He or she is responsible for planning, producing, and maintaining websites and applications. 

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Social Media Manager

A career as social media manager involves implementing the company’s or brand’s marketing plan across all social media channels. Social media managers help in building or improving a brand’s or a company’s website traffic, build brand awareness, create and implement marketing and brand strategy. Social media managers are key to important social communication as well.

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Copy Writer

In a career as a copywriter, one has to consult with the client and understand the brief well. A career as a copywriter has a lot to offer to deserving candidates. Several new mediums of advertising are opening therefore making it a lucrative career choice. Students can pursue various copywriter courses such as Journalism, Advertising, Marketing Management. Here, we have discussed how to become a freelance copywriter, copywriter career path, how to become a copywriter in India, and copywriting career outlook. 

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Journalist

Careers in journalism are filled with excitement as well as responsibilities. One cannot afford to miss out on the details. As it is the small details that provide insights into a story. Depending on those insights a journalist goes about writing a news article. A journalism career can be stressful at times but if you are someone who is passionate about it then it is the right choice for you. If you want to know more about the media field and journalist career then continue reading this article.

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Publisher

For publishing books, newspapers, magazines and digital material, editorial and commercial strategies are set by publishers. Individuals in publishing career paths make choices about the markets their businesses will reach and the type of content that their audience will be served. Individuals in book publisher careers collaborate with editorial staff, designers, authors, and freelance contributors who develop and manage the creation of content.

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Vlogger

In a career as a vlogger, one generally works for himself or herself. However, once an individual has gained viewership there are several brands and companies that approach them for paid collaboration. It is one of those fields where an individual can earn well while following his or her passion. 

Ever since internet costs got reduced the viewership for these types of content has increased on a large scale. Therefore, a career as a vlogger has a lot to offer. If you want to know more about the Vlogger eligibility, roles and responsibilities then continue reading the article. 

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Editor

Individuals in the editor career path is an unsung hero of the news industry who polishes the language of the news stories provided by stringers, reporters, copywriters and content writers and also news agencies. Individuals who opt for a career as an editor make it more persuasive, concise and clear for readers. In this article, we will discuss the details of the editor's career path such as how to become an editor in India, editor salary in India and editor skills and qualities.

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Linguist

Linguistic meaning is related to language or Linguistics which is the study of languages. A career as a linguistic meaning, a profession that is based on the scientific study of language, and it's a very broad field with many specialities. Famous linguists work in academia, researching and teaching different areas of language, such as phonetics (sounds), syntax (word order) and semantics (meaning). 

Other researchers focus on specialities like computational linguistics, which seeks to better match human and computer language capacities, or applied linguistics, which is concerned with improving language education. Still, others work as language experts for the government, advertising companies, dictionary publishers and various other private enterprises. Some might work from home as freelance linguists. Philologist, phonologist, and dialectician are some of Linguist synonym. Linguists can study French, German, Italian

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Public Relation Executive
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Travel Journalist

The career of a travel journalist is full of passion, excitement and responsibility. Journalism as a career could be challenging at times, but if you're someone who has been genuinely enthusiastic about all this, then it is the best decision for you. Travel journalism jobs are all about insightful, artfully written, informative narratives designed to cover the travel industry. Travel Journalist is someone who explores, gathers and presents information as a news article.

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Welding Engineer

Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues. 

5 Jobs Available
QA Manager
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Quality Controller

A quality controller plays a crucial role in an organisation. He or she is responsible for performing quality checks on manufactured products. He or she identifies the defects in a product and rejects the product. 

A quality controller records detailed information about products with defects and sends it to the supervisor or plant manager to take necessary actions to improve the production process.

3 Jobs Available
Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

3 Jobs Available
Production Manager
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Merchandiser
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QA Lead

A QA Lead is in charge of the QA Team. The role of QA Lead comes with the responsibility of assessing services and products in order to determine that he or she meets the quality standards. He or she develops, implements and manages test plans. 

2 Jobs Available
Metallurgical Engineer

A metallurgical engineer is a professional who studies and produces materials that bring power to our world. He or she extracts metals from ores and rocks and transforms them into alloys, high-purity metals and other materials used in developing infrastructure, transportation and healthcare equipment. 

2 Jobs Available
Azure Administrator

An Azure Administrator is a professional responsible for implementing, monitoring, and maintaining Azure Solutions. He or she manages cloud infrastructure service instances and various cloud servers as well as sets up public and private cloud systems. 

4 Jobs Available
AWS Solution Architect

An AWS Solution Architect is someone who specializes in developing and implementing cloud computing systems. He or she has a good understanding of the various aspects of cloud computing and can confidently deploy and manage their systems. He or she troubleshoots the issues and evaluates the risk from the third party. 

4 Jobs Available
QA Manager
4 Jobs Available
Computer Programmer

Careers in computer programming primarily refer to the systematic act of writing code and moreover include wider computer science areas. The word 'programmer' or 'coder' has entered into practice with the growing number of newly self-taught tech enthusiasts. Computer programming careers involve the use of designs created by software developers and engineers and transforming them into commands that can be implemented by computers. These commands result in regular usage of social media sites, word-processing applications and browsers.

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ITSM Manager
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Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

3 Jobs Available
Information Security Manager

Individuals in the information security manager career path involves in overseeing and controlling all aspects of computer security. The IT security manager job description includes planning and carrying out security measures to protect the business data and information from corruption, theft, unauthorised access, and deliberate attack 

3 Jobs Available
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