HBSE 10th Science Question Paper 2025 PDF: Exam Analysis, Marking Scheme

HBSE Class 10 Science Exam: Highlights

Here is a structured table with the key highlights of the HBSE Class 10 Science Exam 2025:

Haryana Board Class 10th Science Question Paper 2025: Download PDF

From the table given below, students can download the HBSE 10th science question paper. The question paper PDF link will be activated soon.

1. An electric bulb is rated 220 V and 100 W. When it is operated at 110 V, the power consumed will be :
(A) 100 W
(B) 75 W
(C) 50 W
(D) 25 W

2. ------ is a small unit of electric power.

3. Which gas is filled in electric bulbs?

4. Assertion (A): The eye lens has the ability to focus clearly on the retina by adjusting its focal length.
Reason $(\mathbf{R})$: This phenomenon is known as the power of accommodation.
(A) Both $(A)$ and ( $R$ ) are true and ( $R$ ) is the correct explanation of (A).
(B) Both $(A)$ and $(R)$ are true, but $(R)$ is not the correct explanation of $(A)$.
(C) $(A)$ is true, but $(R)$ is false.
(D) $(A)$ is false, but $(R)$ is true.

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

6. Why does the sky appear dark instead of blue to an astronaut?

7. How is binary fission different from multiple fission?

HBSE Class 10 Science Answer Key and Solution 2025

Students can match their answer with the correct answer of the Haryana Board Class 10th Science answer key which is given here. Stay updated on this page for detailed solutions and complete answer keys.

HBSC 10th science SET D of Code no 2107 answer key and solution is given below:

Ans 1.

Using the formula:

$$
P^{\prime}=\frac{V^{\prime 2}}{R}
$$

First, calculate resistance:

$$
R=\frac{V^2}{P}=\frac{(220)^2}{100}=484 \Omega
$$

Now, power at 110V:

$$
P^{\prime}=\frac{(110)^2}{484}=25 W
$$
Correct answer: (D) 25 W

Ans 2. A watt (W) is a small unit of electric power.
Answer: Watt (W)

Q 3. Which gas is filled in electric bulbs?
Electric bulbs are filled with inert gases like argon or sometimes a mixture of argon and nitrogen to prevent the filament from burning out quickly.
Answer: Argon (or Argon-Nitrogen mixture)

Ans 4. Assertion-Reason Question

Assertion (A): The eye lens has the ability to focus clearly on the retina by adjusting its focal length. (True)
Reason (R): This phenomenon is known as the power of accommodation. (True)
Since (R) correctly explains (A), the correct answer is:
A) Both (A) and (R) are true, and (R) is the correct explanation of (A).

Ans 5. A plane mirror always forms an erect, virtual image.
A convex mirror always forms a diminished, erect, virtual image.
A concave mirror can form an inverted image when the object is beyond the focal point.
Since both plane and convex mirrors always form erect images, the correct answer is:
(D) either plane or convex

Ans 6. The sky appears dark to an astronaut because there is no atmosphere in space to scatter sunlight.

Ans7.

HBSE 10th Science Exam Paper 2025: Structure and Marking Scheme

The 2025 Haryana board class 10 science examination tests students in a broad range of theoretical knowledge, practical skills, and regular learning activities. The focus of the examination is to judge the students on their academic and practical skills in the field of science. The pattern of the examination is divided into two major aspects: theory and internal assessment, which the board will conduct. This will ensure that the students can judge themselves based on their academic performance and their practical skills.

• Theory Examination (80 Marks):

The theoretical exam for Class 10 Science will last 3 hours. It will test students' knowledge of scientific concepts, their ability to apply them, and their problem-solving skills.

In the 10th class science theory papers consist of Objective Questions, Very Short Answer Questions, Short Answer Questions, and Essay-Type Questions.

• Internal Assessment (20 Marks)

The assessment will concentrate on students' regular performance throughout the academic year. This will include the allocation of different weights to the parts of the test, participation, and project work.

Haryana Board Class 10th Science Question Paper 2025: Analysis

The difficulty level of the HBSE class 10 science paper was moderate. Both numerical and theoretical types of questions were present in the exam. Some of the important pointers are given below:

• Formula-based questions were present from the current electricity chapter, questions were present which, asked to find power and unit of power.
• Questions from optics were heavily asked in this year's HBSE 10th science exam.
• In chemistry, reaction-based questions were seen heavily.

Check This Out:

• HBSE Class 10 Science Answer Key 2025
• HBSE Class 10 Science Question Paper 2025