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Objective Questions with Answer for Science (10) - मुफ्त [PDF] डाउनलोड करें

Last updated on Feb 12, 2026

पाईये मात्रात्मक रूझान उत्तर और विस्तृत समाधान के साथ MCQ प्रश्न। इन्हें मुफ्त में डाउनलोड करें मात्रात्मक रूझान MCQ क्विज़ Pdf और अपनी आगामी परीक्षाओं जैसे बैंकिंग, SSC, रेलवे, UPSC, State PSC की तैयारी करें।
Question 1:
Science (10)

The position of the image of an object due to spherical mirror depends on

object distance

image distance

height of the object

height of the image

View Answer & Solution
Correct Answer: A (object distance)A
Question 2:
Science (10)

The image of an object due to spherical mirror is the point of _______ rays.

Incident

Reflected

Plane mirror

Focus

View Answer & Solution
Correct Answer: B (Reflected)B
Question 3:
Science (10)

Assertion(A): For spherical mirrors, angle of incidence is equal to angle of reflection.

Reason(R): Laws of reflection hold good for all surfaces.

Both A & R are true, R is the correct explanation of A

Both A & R are true, R is not correct explanation of A

A is true, R is false

A is false, R is true

View Answer & Solution
Correct Answer: A (Both A & R are true, R is the correct explanation of A)A
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Question 4:
Science (10)

If convex surface of a spherical mirror is silvered then it is called as

concave

convex

plane

both a & b

View Answer & Solution
Correct Answer: A (concave)A
Question 5:
Science (10)

If reflection takes place at the convex surface of a spherical mirror then it is called as

concave

convex

plane

both a & b

View Answer & Solution
Correct Answer: B (convex)B
Question 6:
Science (10)

What is the angle of incidence when the incident ray is normal to the interface of boundary separating two media?

90°

180°

45°

View Answer & Solution
Correct Answer: A (0°)A
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Question 7:
Science (10)

The law of reflection of light are valid for

Plane mirrors only

Concave mirrors only

Convex mirrors only

All reflecting surfaces

View Answer & Solution
Correct Answer: B (Concave mirrors only)B
Question 8:
Science (10)

Study the diagram given below and identify the gas formed in the reaction.

Carbon dioxide which extinguishes the burning candle.

Oxygen due to which the candle burns more brightly.

Sulphur dioxide which produces a suffocating smell.

Hydrogen which while burning produces apopping sound.

View Answer & Solution
Correct Answer: D (Hydrogen which while burning produces apopping sound.)D
Question 9:
Science (10)

To balance the following chemical equation the values of x and y should respectively be:

2NaOH + xAl2O3 → yNaAlO2 + H2O

1, 4

1, 2

2, 4

2, 3

View Answer & Solution
Correct Answer: B (1, 2)B
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Question 10:
Science (10)

Consider the following chemical equation I and II.

The correct statement about these equations is:

‘I’ is a displacement reaction and ‘II’ is a decomposition reaction.

‘I’ is a displacement reaction and ‘II’ is double displacement reaction.

Both ‘I’ and ‘II’ are displacement reactions.

Both ‘T’ and ‘II’ are double-displacement reactions.

View Answer & Solution
Correct Answer: B (‘I’ is a displacement reaction and ‘II’ is double displacement reaction.)B
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