RD Sharma Class 12 Exercise 12 MCQ Derivative as a rate measure Solutions Maths - Download PDF Free Online

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# RD Sharma Class 12 Exercise 12 MCQ Derivative as a rate measure Solutions Maths - Download PDF Free Online

Edited By Lovekush kumar saini | Updated on Jan 20, 2022 07:23 PM IST

RD Sharma Class 12 Solutions Derivative as a Rate Measure Chapter 12 MCQs is an expert-designed coursebook for CBSE Class 12 students. The solutions book will contain answers to all questions in the latest edition of NCERT maths books for the CBSE board. Students should use the RD Sharma Class 12th MCQs Solutions while solving problems from the maths book so that they can check the accuracy of their answers. Practising the book thoroughly before the board exams are highly recommended as it will improve your chances of scoring well and enhance your problem-solving abilities.

Also Read - RD Sharma Solution for Class 9 to 12 Maths

## Derivative as a Rate Measurer Excercise: 12 MCQ

Derivative as a Rate Measurer exercise multiple choise questions question 1

$B.\; 4\pi$
Hint:
Here, we will use the formula,
$v=\frac{4}{3}\pi r^{3}$
Given:
Here,
$r=10\; \; and \; \; \frac{dr}{dt}=0.01$
Solution:
$\begin{gathered} v=\frac{4}{3} \pi r^{3} \\ \Rightarrow \frac{d v}{d t}=4 \pi r^{2} \frac{d r}{d t} \\ \end{gathered}$
$\Rightarrow \text { Substituting values of } r=10 \quad \text { and } \frac{d r}{d t}=0.01$
\begin{aligned} &\text { We get }\\ &\frac{d v}{d t}=4 \pi \times 10^{2} \times 0.01=4 \pi \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 2

$B. \quad 10\sqrt{3}\; cm^{2}/sec$
Hint:
The area of an equilateral triangle side is
$A=\frac{\sqrt{3}}{4}a^{2} \quad \quad \quad \quad.....(i)$
Given:
$a=10 \text { and } \frac{d a}{d t}=2 \mathrm{~cm} / \mathrm{sec}$
Solution:
Differentiating (i) with respect to t
We get
$\frac{d A}{d t}=\frac{\sqrt{3}}{4} \times 2 a \frac{d a}{d t}$
→ Substituting values of
$a=10 \text { and } \frac{d a}{d t}=2 \mathrm{~cm} / \mathrm{sec}$
We get
\begin{aligned} &\frac{d A}{d t}=\frac{\sqrt{3}}{4} \times 2 a\times \frac{d a}{d t} \\ &\quad=\frac{\sqrt{3 }a}{2} \times \frac{d a}{d t} \\ &\text { When } a=10 \\ &\frac{d A}{d t}=\frac{10 \sqrt{3}}{2} \times 2=10 \sqrt{3} \mathrm{~cm}^{2} / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 3

$(c)$
Hint:
Here, we use the formula and concept of volume of sphere
Given:
$\frac{d r}{d t}=0.1 \mathrm{~cm} / \mathrm{sec} \text { and } r=200 \mathrm{~cm}$
Solution:
The surface area of a sphere of radius r is defined by
\begin{aligned} &A(r)=4 \pi r^{2} \quad \ldots \ldots . . \text { (i) }\\ &\rightarrow \text { Differentiating (i) with respect to } \mathrm{t}\\ &\frac{d A}{d t}=8 \pi r \cdot \frac{d r}{d t}=8 \pi \times 200 \times 0.1=160 \pi \mathrm{cm}^{2} / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 4

$0.002 \mathrm{~cm} / \mathrm{sec} \quad (D)$
Hint:
$V(r, h)=\frac{1}{3} \pi r^{2} h$
Given:
$h=2 r \text { and } \frac{d V}{d t}=40 \mathrm{~cm}^{3} / \mathrm{sec}$
Solution:
\begin{aligned} &V(r)=\frac{2}{3} \pi r^{3}\\ &\rightarrow \text { Differentiating (i) with respect to } t\\ &\frac{d V}{d t}=2 \pi r^{2} \frac{d r}{d t}\\ &40=2 \pi \times 10000 \times \frac{d r}{d t}\\ &\frac{d r}{d t}=0.002 \mathrm{~cm} / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 5

$1m/minute$
Hint:
The volume of a cylinder, with radius r and height h is defined by
Given:
$V(r, h)=\pi r^{2} h$
Solution:
$Substituting\; r=0.5\; \mathrm{~m} \\ we\; get \\ Given\; that\; \frac{d V}{d t}=0.25 \pi \mathrm{m}^{3} / \mathrm{min}, \;we \;have \;to \;calculate \;\frac{d h}{d t} \\ \rightarrow Di\! f\! \! f\! erentiating \;(i)\; with\; respect\; to\; t$
\begin{aligned} &\frac{d V}{d t}=\pi r^{2} \frac{d h}{d t} \\ &\frac{d h}{d t}=\frac{1}{\pi r^{2}} \times \frac{d V}{d t} \\ &\frac{d h}{d t}=\frac{0.25 \pi}{\pi(0.5)^{2}} \\ &\frac{d h}{d t}=\frac{0.25 \pi}{0.25 \pi} \\ &\frac{d h}{d t}=1 \mathrm{~m} / \mathrm{min} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 6

$B.\; \; -42$
Hint:
We are given the distance travelled x is a function of time, we can calculate velocity V and acceleration $a$ by
$V t=\frac{d x}{d t} \text { and } a(t)=\frac{d^{2} x}{d t^{2}}$
Given:
Here, we use the formula,
$x=t^{3}-12 t^{2}+6 t+8$
Solution:
Differentiating w.r.t time we get
$V(t)=\frac{d x}{d t}=3 t^{2}-24 t+6$
Again Differentiating w.r.t time we get
\begin{aligned} &a(t)=\frac{d^{2} x}{d t^{2}}=6 t-24\\ &a=0 \Rightarrow 6 t-24=0 \text { or } t=4 \text { units }\\ &\text { So, Velocity at } t=4\\ &V(t)=\frac{d x}{d t}=3 t^{2}-24 t+6\\ &V(4)=3 \times 4^{2}-24 \times 4+6\\ &V(4)=(-42) \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 7

$\frac{d r}{d t}=\frac{160}{3} \mathrm{~cm} / \mathrm{sec}$
Hint:
The relation between height h, radius r and semi vertical angle $a$ is defined by
$tan\: \alpha =\frac{r}{h}$
Given:
$\alpha=30^{\circ} \text { and } \frac{d \alpha}{d t}=2^{0} / \mathrm{sec}$
Solution:

Let, r be the radius, h be the height & α be the semi-vertical angle of cone
$tan\: \alpha =\frac{r}{h} \quad \quad \quad \quad......(i)$
$\Rightarrow We\; have\; to\; find\; \frac{d r}{d t} \\ \Rightarrow Di\! f\! \! ferentiating \; (i) \; with \; respect \; to \; \mathrm{t}, we \;get \\ \sec ^{2} \alpha \frac{d \alpha}{d t}=\frac{1}{20} \frac{d r}{d t}$
\begin{aligned} &\Rightarrow \text { Substituting values, We get }\\ &\begin{gathered} \sec ^{2} 30^{\circ} \times 2^{0}=\frac{1}{20} \frac{d r}{d t} \quad\quad\quad\quad\quad\left[\mathrm{~h}=20 \mathrm{~cm}, \alpha=30^{\circ} \text { and } \frac{d \alpha}{d t}=2^{0} / \mathrm{sec}\right] \\ \left(\sec ^{2} 30^{\circ}\right) \times 2^{\circ}=\frac{1}{20} \frac{d r}{d t} \\ \frac{4}{3} \times 2=\frac{1}{20} \frac{d r}{d t} \\ \frac{d r}{d t}=\frac{160}{3} \mathrm{~cm} / \mathrm{sec} \end{gathered} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 8

$(d)\; \; 3,\; \; \frac{1}{3}$
Hint:
Here, we use the basic concept of algebra.
Given:
$x^{3}-5x^{2}+5x+8$
Solution:
$p(x)=x^{3}-5x^{2}+5x+8 \quad\quad\quad\quad......(i)$
→ Differentiating (i) with respect to t,we get
\begin{aligned} &\frac{d p(x)}{d t}=\left(x^{3}-5 x^{2}+5 x+8\right) \frac{d x}{d t}=2 \frac{d x}{d t}\\ &2 \frac{d x}{d t}=\left(3 x^{2}-10 x+5\right) \frac{d x}{d t}\\ &=3 x^{2}-10 x+5=2\\ &=3 x^{2}-10 x+3=0\\ &\rightarrow \text { Factorizing the above quadratic equation, }\\ &\text { we get }(3 x-1)(x-3)=0\\ &\Rightarrow x=\frac{1}{3} \text { and } x=3 \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 9

$\left(3, \frac{16}{3}\right) \text { and }\left(3,-\frac{16}{3}\right)$
Hint:
Here, we use the basic concept of algebra
Given:
$16x^{2}+9y^{2}=400$
Solution: Let
$E(x,y)=16x^{2}+9y^{2}=400$
Solving for y we get
$y=\pm \frac{\sqrt{400-16 x^{2}}}{3} \quad\quad \quad \quad .....(i)$
Given that
$\frac{d x}{d t}=-\frac{d y}{d t}$
we have to calculate
→ Differentiating (i) with respect to t,we get
\begin{aligned} \frac{d y}{d t} &=\pm \frac{1}{3} \times \frac{1}{2 \sqrt{400-46 x^{2}}} \times-32 \times \frac{d x}{d t} \\ &=\mp \frac{16 x}{3 \sqrt{400-16 x^{2}}} \frac{d x}{d t} \end{aligned}
→ Substituting values
We get
\begin{aligned} 16 x=\pm 3 \sqrt{400-16 x^{2}}\\ \end{aligned}
Squaring the equation, we get
\begin{aligned} &256 x^{2}=9\left(400-16 x^{2}\right) \end{aligned}
Solving the equation we get
$x^{2}=9 \\ x=\pm 3$
→ Substituting in (i), we get
\begin{aligned} &y=\pm \frac{\sqrt{400-16 \times 9}}{3}=\pm \frac{16}{3}\\ &\text { So, }\\ &\left(3, \frac{16}{3}\right) \text { and }\left(3,-\frac{16}{3}\right) \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 10

$A.\; \; 54\pi \; \; cm^{2}/min$
Hint:
The lateral surface area of cone, with radius r and height h is defined as
\begin{aligned} &L(r, h)=\pi r \sqrt{r^{2}+h^{2}} \quad \ldots \ldots \text { (i) }\\ \end{aligned}
Given:
\begin{aligned} &r=7 \mathrm{~cm}, h=24 \mathrm{~cm} \text { and } \frac{d r}{d t}=3 \mathrm{~cm} / \mathrm{min}, \frac{d h}{d t}=-4 \mathrm{~cm} / \mathrm{min}\\ \end{aligned}
Solution:
→ Differentiating (i) with respect to t,we get
\begin{aligned} &\frac{d l}{d t}=\pi\left(\sqrt{r^{2}+h^{2}} \frac{d r}{d t}+r \times \frac{1}{2 \sqrt{r^{2}+h^{2}}} \times\left(2 r \frac{d r}{d t}+2 h \frac{d h}{d t}\right)\right)\\ &\text { Substituting values }\\ &\frac{d l}{d t}=\pi\left(\sqrt{7^{2}+24^{2}} \times 3+7 \times \frac{1}{2 \sqrt{7^{2}+24^{2}}} \times(2 \times 7 \times 3+2 \times 24 \times-4)\right)\\ &\frac{d l}{d t}=54 \pi \mathrm{cm}^{2} / \mathrm{min} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 11

$B.\; \; 180\pi \; \; cm^{3}/min$
Hint:
Here we use formula of a sphere of radius r is defined by
\begin{aligned} &V(r)=\frac{4}{3} \pi r^{3} \quad \quad \quad \quad....(i) \end{aligned}
Given:
\begin{aligned} &r=15 \mathrm{~cm} \; \; \; \frac{d r}{d t}=0.2 \mathrm{~cm} / \mathrm{min} \end{aligned}
Solution:
→ Differentiating (i) with respect to t, we get
\begin{aligned} &\frac{d V}{d t}=4 \pi r^{2} \times \frac{d r}{d t} \\ &\frac{d V}{d t}=4 \pi \times 15^{2} \times 0.2=180 \pi \mathrm{cm}^{3} / \mathrm{min} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 12

$B.\; \; \frac{3}{16\pi }\; cm/sec$$B.\; \; \frac{3}{16\pi }\; cm/sec$
Hint:
Here we use formula of a sphere of radius r is defined by
\begin{aligned} &V(r)=\frac{4}{3} \pi r^{3} \quad \quad.....(i) \end{aligned}
Given:
\begin{aligned} &r=2 c m\; \; \frac{d V}{d t}=3 \mathrm{~cm}^{2} / \mathrm{sec} \end{aligned}
Solution:
→ Differentiating (i) with respect to t, we get
\begin{aligned} &\frac{d V}{d t}=\frac{4}{3} \pi r^{2} \times \frac{d r}{d t} \\ &3=4 \pi \times 2^{2} \times \frac{d r}{d t} \\ &\frac{d r}{d t}=\frac{3}{16 \pi} \mathrm{cm} / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 13

$A. \: \: 9$
Hint:
We are given the distance travelled as a function of time, we can calculate velocity by
\begin{aligned} &V(t)=\frac{d s}{d t} \\ \end{aligned}
Given:
\begin{aligned} s=45 t+11 t^{2}+3 \end{aligned}
Solution:
→ Differentiating (i) with respect to t, we get
\begin{aligned} &V(t)=\frac{d s}{d t} =45 t+11 t^{2}+3 \end{aligned}
→ If the particle is at rest, then it’s velocity will be 0
→ Solving the quadratic equation we get
$t=\frac{-5}{3}, \quad t \neq 0 \quad \text { so, } t=9$

Derivative as a Rate Measurer exercise multiple choise question 14

$\frac{d r}{d t}=\frac{1}{36} \mathrm{~cm} / \mathrm{sec}$
Hint:
The volume of sphere, the radius r is defined by
\begin{aligned} &V(r)=\frac{4}{3} \pi r^{3} \quad \quad \quad .....(i) \end{aligned}
Given:
\begin{aligned} V=288 \pi \mathrm{cm}^{3} \end{aligned}
Solution:
\begin{aligned} &288 \pi=\frac{4}{3} \pi r^{3}\\ &\text { Solving for } r^{r}, \text { we get } r=6 \mathrm{~cm} \end{aligned}
\begin{aligned} &\rightarrow \text { Given that } \frac{d V}{d t}=4 \pi \mathrm{cm}^{3} / \mathrm{sec}\\ &\rightarrow \text { Differentiating (i) with respect to t, we get } \end{aligned}
\begin{aligned} &\frac{d V}{d t}=\frac{4}{3} \pi r^{2} \times \frac{d r}{d t}\\ &\rightarrow \text { Substituting values, we get }\\ &4 \pi=4 \pi \times 6^{2} \times \frac{d r}{d t}\\ &\frac{d r}{d t}=\frac{1}{36} \mathrm{~cm} / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 15

\begin{aligned} &\text { D. } \quad r=\frac{1}{2 \sqrt{n}} \end{aligned}
Hint:
The volume of sphere of radius r is defined by
$V(r)=\frac{4}{3}\pi r^{3}$
Given:
$\frac{dV}{dt}=\frac{dr}{dt}$
Solution:
\begin{aligned} &4 \pi r^{2} \times \frac{d r^{\prime}}{d t}=\frac{d r^{\prime}}{d t} \\ &4 \pi r^{2}=1 \end{aligned}
\begin{aligned} &r=\frac{1}{2\sqrt{n}}\: units \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 16

$B.\; r=\frac{1}{\pi }units$
Hint:
The area of circle of radius r is defined by
$A(r)=\pi r^{2}$
Given:
$\frac{d A}{d t}=\frac{2 d r}{d t}$
Solution:
We get
$2 \pi r \frac{d r}{d t}=\frac{2 d r}{d t}\\ \\ \pi r=1 \\ \\ r=\frac{1}{\pi} unite$

Derivative as a Rate Measurer exercise multiple choise question 17

$8\sqrt{3}\: cm^{2}/hr$
Hint:
The area of an equilateral triangle with side a, is defined as,
$A(a)=\frac{\sqrt{3}}{4} a^{2}$
Given:
$\frac{d a}{d t}=8 \mathrm{~cm} / \mathrm{hr} \\ \\ a=2 \mathrm{~cm} \\ W\! e\; have\; to\; calculate\; \frac{d A}{d t}$
Solution:
→ Differentiating (i) with respect to t, we get
\begin{aligned} &\frac{d A}{d t}=\frac{\sqrt{3}}{2} a \frac{d a}{d t}\\ \end{aligned}
→ Substituting values, we get
\begin{aligned} &\frac{d A}{d t}=\frac{\sqrt{3}}{2} \times 2 \times 8=8 \sqrt{3} \mathrm{~cm}^{2} / h r \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 18

$D. \: \: -\frac{16}{3}\: unit/sec$
Hint:
We are given the distance travelled as a function of time, We can calculate velocity and acceleration by
\begin{aligned} &V t=\frac{d s}{d t} \text { and } a=\frac{d^{2} s}{d t^{2}} \\ \end{aligned}
Given:
\begin{aligned} s t=t^{3}-4 t^{2}+5 \end{aligned}
Solution:
→ Differentiating with respect to time, we get
\begin{aligned} &V t=\frac{d s}{d t}=3 t^{2}-8 t \end{aligned}
→ Differentiating again with respect to time, we get
\begin{aligned} &a(t)=\frac{d^{2} s}{d t^{2}}=6 t=8 \end{aligned}
\begin{aligned} &\rightarrow \text { Given that } a=0 \Rightarrow 6 t-8=0 \\ &\text { Or }=\frac{4}{3} \text { unit } / \mathrm{sec} \\ &V\left(\frac{4}{3}\right)=3 \times \frac{4^{2}}{3^{2}}-8 \times \frac{4}{3}=-\frac{16}{3} \text { unit } / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 19

\begin{aligned} &\frac{\pi}{3}+\sqrt{3} \mathrm{~m} / \mathrm{sec}\\ \end{aligned}
Hint:
Here
\begin{aligned} &V t=\frac{d s}{d t} \text { and } a=\frac{d^{2} s}{d t^{2}}\\ \end{aligned}
Given:
\begin{aligned} &t=2 t^{2}+\sin 2 t \end{aligned}
Solution:
→ Differentiating with respect to time, we get
\begin{aligned} &V t=\frac{d s}{d t}=4 t+2 \cos 2 t \quad \quad \quad .....(i) \end{aligned}
→ Differentiating again with respect to time, we get
\begin{aligned} &a(t)=\frac{d^{2} s}{d t^{2}}=4-4 \sin 2 t \end{aligned}
\begin{aligned} &\text { Given that } a=2 \Rightarrow 4-4 \sin 2 t=2 \\ &\text { Or } \sin 2 t-\frac{1}{2}=\sin \frac{\pi}{6} \\ &\rightarrow t=\frac{\pi}{12} \\ &V\left(\frac{\pi}{12}\right)=4 \times \frac{\pi}{12}+2 \cos \left(\frac{\pi}{6}\right) \Rightarrow \frac{\pi}{3}+\sqrt{3} \mathrm{~m} / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 20

$0.24\pi \: cm^{2}/sec$
Hint:
The circumference of a circle
$A(r)=\pi r^{2} \quad \quad \quad \quad \quad....(i)$
Given:
\begin{aligned} &r=12 \mathrm{~cm} \\ &\frac{d r}{d t}=0.01 \mathrm{~cm} / \mathrm{sec} \end{aligned}
Solution:
\begin{aligned} &\rightarrow \text { Differentiating (i) respect to } \mathrm{t} \text { , we get }\\ &\frac{d A}{d t}=2 \pi r \frac{d r}{d t}=2 \pi \times 12 \times 0.01\\ &=0.24 \pi \mathrm{cm}^{2} / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 21

$\pi ^{2}\: cm^{2}/sec$
Hint:
The circumference of a circle
$A(r)=\pi r^{2} \quad \quad \quad \quad \quad .....(i)$
Given:
$r=\pi \mathrm{cm} \\ \frac{2 d r}{d t}=1 \mathrm{~cm} / \mathrm{sec}$
Solution:
→ Differentiating (i) respect to t, we get
$\frac{d A}{d t}=2 \pi r \frac{d r}{d t}=\pi \times \pi \times 1 \\ \\ =\pi^{2} \mathrm{~cm}^{2} / \mathrm{sec}$

Derivative as a Rate Measurer exercise multiple choise question 22

$Vs=3.2 km/hr$
Hint:
Here, we use basic concept of volume algebra
Given:
$hm=2m \quad Vm=48km/hr \quad h_{1}=5m$
Solution:
\begin{aligned} &\rightarrow \text { Consider } \Delta A E C \text { and } \Delta B E D\\ &\angle A E D=\angle B E D=\theta\\ &\angle E A C=\angle E B D=90^{\circ}\\ &\text { Therefore, } \Delta A E C \approx \Delta B E D \text { by AA criteria } \end{aligned}
\begin{aligned} &\frac{A C}{B D}=\frac{A E}{B E}\\ &\rightarrow \text { Substituting values, we get }\\ &\frac{5}{2}=\frac{4800+x}{x} \end{aligned}
\begin{aligned} &\rightarrow \text { Simplifying the equation }\\ &x=3200 \quad \quad......(i) \end{aligned}
\begin{aligned} &\rightarrow \text { Differentiating (i) respect to } r^{r}, \text { we get }\\ &V \cdot s=\frac{d x}{d t}=3200 \mathrm{~m} / \mathrm{hr}=3.2 \mathrm{~km} / \mathrm{hr} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 23

$\frac{dx}{dt}=V\! s=6\: ft/sec$
Hint:
Here, we use basic concept of volume algebra
Given:
$hm=6\, f\! t \quad V\! m=9\, f\! t/sec \quad h_{1}=15\, f\! t$
Solution:
\begin{aligned} &\rightarrow \text { Consider } \Delta A E C \text { and } \Delta B E D \\ &\angle A E D=\angle B E D=\theta \\ &\angle E A C=\angle E B D=90^{\circ} \end{aligned}
\begin{aligned} &\text { Therefore, } \triangle A E C \approx \Delta B E D \text { by AA criteria }\\ &\frac{A C}{B D}=\frac{A E}{B E} \end{aligned}
\begin{aligned} &\rightarrow \text { Substituting values, we get }\\ &\frac{15}{6}=\frac{9 t+x}{x} \end{aligned}
\begin{aligned} &\rightarrow \text { Simplifying the equation }\\ &\frac{15}{6}=\frac{9 t}{x+x}\\ &x=6 t\\ &V \! s=\frac{d x}{d t}=6 \mathrm{ft} / \mathrm{sec} \end{aligned}

Derivative as a Rate Measurer exercise multiple choise question 24

C. Surface area times the rate of change of radius
Hint:
The volume and surface area of a sphere with radius r, is defined as,
Given:
$V(r)=\frac{4}{3} \pi r^{3} \quad \ldots \ldots \text { (i) } \quad \text { and } \quad A(r)=4 \pi r^{2}$
Solution:
\begin{aligned} &\rightarrow \text { Differentiating (i) respect to } \mathrm{t}, \text { we get }\\ &V(r)=\frac{4}{3} \pi r^{2} \frac{d r}{d t}=A \times \frac{d r}{d t} \end{aligned}
(Surface area of sphere) X (rate of change of radius)

Derivative as a Rate Measurer exercise multiple choise question 25

D. 8$\pi$times the rate of change of radius.
Hint:
The surface area of a sphere with radius r is defined as
$A(r)=4\pi r^{2} \quad \quad \quad \quad .......(i)$
Given:

Solution:
\begin{aligned} &\rightarrow \text { Differentiating (i) respect to } \mathrm{t}, \text { we get }\\ &\frac{d A}{d t}=8 \pi r \frac{d r}{d t} \end{aligned}
$\rightarrow 8 \pi \times \text { current radius } \times \text { rate of change of radius }$

Derivative as a Rate Measurer exercise multiple choise question 26

\begin{aligned} &\text { A. } \frac{d h}{d t}=1 m / h r \end{aligned}
Hint:
The volume of a cylinder, of radius r and height h is defined as
\begin{aligned} &V(r, h)=\pi r^{2} h\\ \end{aligned}
Given:
\begin{aligned} &r=10 \mathrm{~m} \text { we get }\\ &V(h)=\pi \times 10^{2} \times h=100 \pi h \quad \quad \quad .....(i)\\ &\frac{d v}{d t}=314 m^{3} / h r \end{aligned}
Solution:
→ Differentiating (i) respect to t, we get
\begin{aligned} &\frac{d v}{d t}=100 \pi \frac{d h}{d t}\\ &\rightarrow \text { Substituting values and using } \quad \pi =\frac{3}{4} \text { we get } \end{aligned}
\begin{aligned} &314=100 \times 3.14 \frac{d h}{d t} \\ &\frac{d h}{d t}=1 \mathrm{~m} / \mathrm{hr} \end{aligned}

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It's profoundly proposed that RD Sharma Class 12th MCQs are in accordance with the latest CBSE board syllabus. We highly recommend students pick the RD Sharma Class 12 chapter 12 MCQs Solutions from Career360 as reference material for exams and internals.

4. What are the number of questions asked in the class 12 RD Sharma chapter 12, MCQs reference book?

There are 26 questions in RD Sharma Solutions RD Sharma Class 12th MCQs.

Yes, anyone who visit the Career 360 website can access the RD Sharma solution books. In the same way, the download option is also available to save the PDFs in their devices.

## Upcoming School Exams

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Get answers from students and experts
##### 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.

4 Jobs Available

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.

4 Jobs Available
##### 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.

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
##### GIS Expert

GIS officer work on various GIS software to conduct a study and gather spatial and non-spatial information. GIS experts update the GIS data and maintain it. The databases include aerial or satellite imagery, latitudinal and longitudinal coordinates, and manually digitized images of maps. In a career as GIS expert, one is responsible for creating online and mobile maps.

3 Jobs Available
##### 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.

3 Jobs Available
##### Database Architect

If you are intrigued by the programming world and are interested in developing communications networks then a career as database architect may be a good option for you. Data architect roles and responsibilities include building design models for data communication networks. Wide Area Networks (WANs), local area networks (LANs), and intranets are included in the database networks. It is expected that database architects will have in-depth knowledge of a company's business to develop a network to fulfil the requirements of the organisation. Stay tuned as we look at the larger picture and give you more information on what is db architecture, why you should pursue database architecture, what to expect from such a degree and what your job opportunities will be after graduation. Here, we will be discussing how to become a data architect. Students can visit NIT Trichy, IIT Kharagpur, JMI New Delhi

3 Jobs Available
##### 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.

3 Jobs Available
##### Bank Probationary Officer (PO)

A career as Bank Probationary Officer (PO) is seen as a promising career opportunity and a white-collar career. Each year aspirants take the Bank PO exam. This career provides plenty of career development and opportunities for a successful banking future. If you have more questions about a career as  Bank Probationary Officer (PO), what is probationary officer or how to become a Bank Probationary Officer (PO) then you can read the article and clear all your doubts.

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
##### 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.

3 Jobs Available
##### Finance Executive

A career as a Finance Executive requires one to be responsible for monitoring an organisation's income, investments and expenses to create and evaluate financial reports. His or her role involves performing audits, invoices, and budget preparations. He or she manages accounting activities, bank reconciliations, and payable and receivable accounts.

3 Jobs Available
##### 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.

3 Jobs Available
##### Bank Branch Manager

Bank Branch Managers work in a specific section of banking related to the invention and generation of capital for other organisations, governments, and other entities. Bank Branch Managers work for the organisations and underwrite new debts and equity securities for all type of companies, aid in the sale of securities, as well as help to facilitate mergers and acquisitions, reorganisations, and broker trades for both institutions and private investors.

3 Jobs Available
##### Treasurer

Treasury analyst career path is often regarded as certified treasury specialist in some business situations, is a finance expert who specifically manages a company or organisation's long-term and short-term financial targets. Treasurer synonym could be a financial officer, which is one of the reputed positions in the corporate world. In a large company, the corporate treasury jobs hold power over the financial decision-making of the total investment and development strategy of the organisation.

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
##### 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.

3 Jobs Available
##### 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.

2 Jobs Available
##### Carpenter

Carpenters are typically construction workers. They stay involved in performing many types of construction activities. It includes cutting, fitting and assembling wood.  Carpenters may help in building constructions, bridges, big ships and boats. Here, in the article, we will discuss carpenter career path, carpenter salary, how to become a carpenter, carpenter job outlook.

2 Jobs Available
##### Welder

An individual who opts for a career as a welder is a professional tradesman who is skilled in creating a fusion between two metal pieces to join it together with the use of a manual or fully automatic welding machine in their welder career path. It is joined by intense heat and gas released between the metal pieces through the welding machine to permanently fix it.

2 Jobs Available
##### 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.

2 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.

2 Jobs Available
##### Field Surveyor

Are you searching for a Field Surveyor Job Description? A Field Surveyor is a professional responsible for conducting field surveys for various places or geographical conditions. He or she collects the required data and information as per the instructions given by senior officials.

2 Jobs Available
##### 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.

6 Jobs Available
##### Pathologist

A career in pathology in India is filled with several responsibilities as it is a medical branch and affects human lives. The demand for pathologists has been increasing over the past few years as people are getting more aware of different diseases. Not only that, but an increase in population and lifestyle changes have also contributed to the increase in a pathologist’s demand. The pathology careers provide an extremely huge number of opportunities and if you want to be a part of the medical field you can consider being a pathologist. If you want to know more about a career in pathology in India then continue reading this article.

5 Jobs Available
##### Veterinary Doctor

A veterinary doctor is a medical professional with a degree in veterinary science. The veterinary science qualification is the minimum requirement to become a veterinary doctor. There are numerous veterinary science courses offered by various institutes. He or she is employed at zoos to ensure they are provided with good health facilities and medical care to improve their life expectancy.

5 Jobs Available
##### 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.

4 Jobs Available
##### 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.

3 Jobs Available
##### Surgical Technologist

When it comes to an operation theatre, there are several tasks that are to be carried out before as well as after the operation or surgery has taken place. Such tasks are not possible without surgical tech and surgical tech tools. A single surgeon cannot do it all alone. It’s like for a footballer he needs his team’s support to score a goal the same goes for a surgeon. It is here, when a surgical technologist comes into the picture. It is the job of a surgical technologist to prepare the operation theatre with all the required equipment before the surgery. Not only that, once an operation is done it is the job of the surgical technologist to clean all the equipment. One has to fulfil the minimum requirements of surgical tech qualifications.

3 Jobs Available
##### Critical Care Specialist

A career as Critical Care Specialist is responsible for providing the best possible prompt medical care to patients. He or she writes progress notes of patients in records. A Critical Care Specialist also liaises with admitting consultants and proceeds with the follow-up treatments.

2 Jobs Available
##### Ophthalmologist

Individuals in the ophthalmologist career in India are trained medically to care for all eye problems and conditions. Some optometric physicians further specialize in a particular area of the eye and are known as sub-specialists who are responsible for taking care of each and every aspect of a patient's eye problem. An ophthalmologist's job description includes performing a variety of tasks such as diagnosing the problem, prescribing medicines, performing eye surgery, recommending eyeglasses, or looking after post-surgery treatment.

2 Jobs Available
##### 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.

4 Jobs Available
##### Acrobat

Individuals who opt for a career as acrobats create and direct original routines for themselves, in addition to developing interpretations of existing routines. The work of circus acrobats can be seen in a variety of performance settings, including circus, reality shows, sports events like the Olympics, movies and commercials. Individuals who opt for a career as acrobats must be prepared to face rejections and intermittent periods of work. The creativity of acrobats may extend to other aspects of the performance. For example, acrobats in the circus may work with gym trainers, celebrities or collaborate with other professionals to enhance such performance elements as costume and or maybe at the teaching end of the career.

3 Jobs Available
##### 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.

3 Jobs Available
##### Talent Agent

The career as a Talent Agent is filled with responsibilities. A Talent Agent is someone who is involved in the pre-production process of the film. It is a very busy job for a Talent Agent but as and when an individual gains experience and progresses in the career he or she can have people assisting him or her in work. Depending on one’s responsibilities, number of clients and experience he or she may also have to lead a team and work with juniors under him or her in a talent agency. In order to know more about the job of a talent agent continue reading the article.

If you want to know more about talent agent meaning, how to become a Talent Agent, or Talent Agent job description then continue reading this article.

3 Jobs Available

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.

3 Jobs Available
##### 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.

2 Jobs Available
##### 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.

2 Jobs Available
##### Talent Director

Individuals who opt for a career as a talent director are professionals who work in the entertainment industry. He or she is responsible for finding out the right talent through auditions for films, theatre productions, or shows. A talented director possesses strong knowledge of computer software used in filmmaking, CGI and animation. A talent acquisition director keeps himself or herself updated on various technical aspects such as lighting, camera angles and shots.

2 Jobs Available
##### 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.

5 Jobs Available
##### 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.

3 Jobs Available
##### 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.

3 Jobs Available
##### 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.

3 Jobs Available
##### 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 cost got reduced the viewership for these types of content has increased on a large scale. Therefore, the career as vlogger has a lot to offer. If you want to know more about the career as vlogger, how to become a vlogger, so on and so forth then continue reading the article. Students can visit Jamia Millia Islamia, Asian College of Journalism, Indian Institute of Mass Communication to pursue journalism degrees.

3 Jobs Available
##### 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.

2 Jobs Available
##### Videographer

Careers in videography are art that can be defined as a creative and interpretive process that culminates in the authorship of an original work of art rather than a simple recording of a simple event. It would be wrong to portrait it as a subcategory of photography, rather photography is one of the crafts used in videographer jobs in addition to technical skills like organization, management, interpretation, and image-manipulation techniques. Students pursue Visual Media, Film, Television, Digital Video Production to opt for a videographer career path. The visual impacts of a film are driven by the creative decisions taken in videography jobs. Individuals who opt for a career as a videographer are involved in the entire lifecycle of a film and production.

2 Jobs Available
##### SEO Analyst

An SEO Analyst is a web professional who is proficient in the implementation of SEO strategies to target more keywords to improve the reach of the content on search engines. He or she provides support to acquire the goals and success of the client’s campaigns.

2 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
##### 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
##### Production Manager

Production Manager Job Description: A Production Manager is responsible for ensuring smooth running of manufacturing processes in an efficient manner. He or she plans and organises production schedules. The role of Production Manager involves estimation, negotiation on budget and timescales with the clients and managers.

3 Jobs Available

A Team Leader is a professional responsible for guiding, monitoring and leading the entire group. He or she is responsible for motivating team members by providing a pleasant work environment to them and inspiring positive communication. A Team Leader contributes to the achievement of the organisation’s goals. He or she improves the confidence, product knowledge and communication skills of the team members and empowers them.

2 Jobs Available
##### Quality Systems Manager

A Quality Systems Manager is a professional responsible for developing strategies, processes, policies, standards and systems concerning the company as well as operations of its supply chain. It includes auditing to ensure compliance. It could also be carried out by a third party.

2 Jobs Available
##### Merchandiser

A career as a merchandiser requires one to promote specific products and services of one or different brands, to increase the in-house sales of the store. Merchandising job focuses on enticing the customers to enter the store and hence increasing their chances of buying a product. Although the buyer is the one who selects the lines, it all depends on the merchandiser on how much money a buyer will spend, how many lines will be purchased, and what will be the quantity of those lines. In a career as merchandiser, one is required to closely work with the display staff in order to decide in what way a product would be displayed so that sales can be maximised. In small brands or local retail stores, a merchandiser is responsible for both merchandising and buying.

2 Jobs Available
##### Procurement Manager

The procurement Manager is also known as  Purchasing Manager. The role of the Procurement Manager is to source products and services for a company. A Procurement Manager is involved in developing a purchasing strategy, including the company's budget and the supplies as well as the vendors who can provide goods and services to the company. His or her ultimate goal is to bring the right products or services at the right time with cost-effectiveness.

2 Jobs Available
##### Production Planner

Individuals who opt for a career as a production planner are professionals who are responsible for ensuring goods manufactured by the employing company are cost-effective and meets quality specifications including ensuring the availability of ready to distribute stock in a timely fashion manner.

2 Jobs Available
##### ITSM Manager

ITSM Manager is a professional responsible for heading the ITSM (Information Technology Service Management) or (Information Technology Infrastructure Library) processes. He or she ensures that operation management provides appropriate resource levels for problem resolutions. The ITSM Manager oversees the level of prioritisation for the problems, critical incidents, planned as well as proactive tasks.

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
##### 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.

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
##### IT Consultant

An IT Consultant is a professional who is also known as a technology consultant. He or she is required to provide consultation to industrial and commercial clients to resolve business and IT problems and acquire optimum growth. An IT consultant can find work by signing up with an IT consultancy firm, or he or she can work on their own as independent contractors and select the projects he or she wants to work on.

2 Jobs Available
##### Data Architect

A Data Architect role involves formulating the organisational data strategy. It involves data quality, flow of data within the organisation and security of data. The vision of Data Architect provides support to convert business requirements into technical requirements.

2 Jobs Available
##### Security Engineer

The Security Engineer is responsible for overseeing and controlling the various aspects of a company's computer security. Individuals in the security engineer jobs include developing and implementing policies and procedures to protect the data and information of the organisation. In this article, we will discuss the security engineer job description, security engineer skills, security engineer course, and security engineer career path.

2 Jobs Available
##### UX Architect

A UX Architect is someone who influences the design processes and its outcomes. He or she possesses a solid understanding of user research, information architecture, interaction design and content strategy.

2 Jobs Available