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Question (1)

QN0029753

A student stands 4 m in front of a plane mirror. If the mirror is moved 1 m towards the student, what will be the new distance between the student and the image?

(A) 4 m
(B) 5 m
(C) 6 m
(D) 8 m

Correct Answer: C

Explanation:

New object distance becomes 3 m, so image distance is also 3 m. Total distance = 6 m.

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Question (2)

QN0029754

Which of the following materials will allow partial passage of light and form a blurred image?

(A) Transparent glass
(B) Cardboard
(C) Frosted glass
(D) Polished mirror

Correct Answer: C

Explanation:

Frosted glass is translucent and allows partial light transmission.

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Question (3)

QN0029755

A pinhole camera forms an image of a candle flame. If the candle is moved closer to the pinhole, the image will become

(A) smaller
(B) brighter only
(C) larger
(D) upright

Correct Answer: C

Explanation:

Bringing the object closer increases image size.

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Question (4)

QN0029756

Which property of light explains the formation of shadows?

(A) Dispersion
(B) Reflection
(C) Rectilinear propagation
(D) Refraction

Correct Answer: C

Explanation:

Shadows form because light travels in straight lines.

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Question (5)

QN0029757

A student places a book 2 m in front of a plane mirror. The image formed will be located

(A) 1 m behind the mirror
(B) 2 m behind the mirror
(C) 3 m behind the mirror
(D) 4 m behind the mirror

Correct Answer: B

Explanation:

Image distance equals object distance in a plane mirror.

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Question (6)

QN0029758

Which useful device uses two plane mirrors inclined to each other to produce repeated patterns?

(A) Microscope
(B) Telescope
(C) Kaleidoscope
(D) Periscope

Correct Answer: C

Explanation:

Multiple reflections in mirrors create patterns.

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Question (7)

QN0029759

A shadow becomes shortest during the day when the Sun is

(A) near the horizon
(B) setting in the west
(C) highest in the sky
(D) hidden by clouds

Correct Answer: C

Explanation:

The Sun is overhead at noon, making shadows shortest.

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Question (8)

QN0029760

Which statement about a virtual image is correct?

(A) It can be captured on a screen
(B) It is always upside down
(C) It cannot be obtained on a screen
(D) It is formed only by lenses

Correct Answer: C

Explanation:

Virtual images cannot be projected on screens.

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Question (9)

QN0029761

A student uses a periscope to look over a wall. The periscope works mainly because of

(A) refraction
(B) regular reflection
(C) scattering
(D) absorption

Correct Answer: B

Explanation:

Mirrors inside the periscope reflect light.

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Question (10)

QN0029762

Which of the following objects is a luminous object?

(A) Moon
(B) Mirror
(C) Electric bulb glowing
(D) White paper

Correct Answer: C

Explanation:

Luminous objects emit their own light.

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Question (1)

A student stands 4 m in front of a plane mirror. If the mirror is moved 1 m towards the student, what will be the new distance between the student and the image?

Explanation:

Link:

Question (2)

Which of the following materials will allow partial passage of light and form a blurred image?

Explanation:

Link:

Question (3)

A pinhole camera forms an image of a candle flame. If the candle is moved closer to the pinhole, the image will become

Explanation:

Link:

Question (4)

Which property of light explains the formation of shadows?

Explanation:

Link:

Question (5)

A student places a book 2 m in front of a plane mirror. The image formed will be located

Explanation:

Link:

Question (6)

Which useful device uses two plane mirrors inclined to each other to produce repeated patterns?

Explanation:

Link:

Question (7)

A shadow becomes shortest during the day when the Sun is

Explanation:

Link:

Question (8)

Which statement about a virtual image is correct?

Explanation:

Link:

Question (9)

A student uses a periscope to look over a wall. The periscope works mainly because of

Explanation:

Link:

Question (10)

Which of the following objects is a luminous object?

Explanation:

Link:

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