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Question (1)

QN0028956

A student looks at himself in three mirrors. In Mirror P his image is always smaller and erect. In Mirror Q his image becomes inverted when he moves farther away. Mirror R always gives an image of the same size. Identify P, Q and R respectively.

(A) Convex, Concave, Plane
(B) Concave, Convex, Plane
(C) Plane, Concave, Convex
(D) Convex, Plane, Concave

Correct Answer: A

Explanation:

Convex mirrors always form erect diminished images, concave mirrors can form inverted images, and plane mirrors form images of the same size.

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Question (2)

QN0028957

A light ray strikes a mirror with an angle of incidence of 35°. What is the angle between the reflected ray and the normal?

(A) 70°
(B) 35°
(C) 55°
(D) 90°

Correct Answer: B

Explanation:

By the law of reflection, angle of incidence equals angle of reflection.

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Question (3)

QN0028958

A dentist wants an enlarged view of a patient's tooth. Which mirror should be used and why?

(A) Plane mirror; same-size image
(B) Convex mirror; wider field of view
(C) Concave mirror; enlarged image at close distance
(D) Any mirror; all enlarge images

Correct Answer: C

Explanation:

A concave mirror forms an enlarged erect image when the object is close to it.

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Question (4)

QN0028959

Two identical toy cars are placed at equal distances from a convex mirror and a plane mirror. Compared to the plane mirror image, the image in the convex mirror will be:

(A) Larger and inverted
(B) Same size and erect
(C) Smaller and erect
(D) Smaller and inverted

Correct Answer: C

Explanation:

Convex mirrors always produce erect diminished images.

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Question (5)

QN0028960

A driver wants to see the largest possible area behind a vehicle. Which mirror is most suitable?

(A) Plane mirror
(B) Concave mirror
(C) Convex mirror
(D) Any spherical mirror

Correct Answer: C

Explanation:

Convex mirrors provide a wider field of view and are used as side-view mirrors.

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Question (6)

QN0028961

A ray of light falls normally on a mirror surface. The angle of reflection is:

(A) 90°
(B) 45°
(C) 0°
(D) Cannot be determined

Correct Answer: C

Explanation:

When light falls along the normal, angle of incidence is 0° and angle of reflection is also 0°.

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Question (7)

QN0028962

A student observes that several parallel light rays reflected from a mirror come closer together. The mirror is:

(A) Plane
(B) Concave
(C) Convex
(D) Transparent glass plate

Correct Answer: B

Explanation:

Concave mirrors converge parallel rays after reflection.

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Question (8)

QN0028963

A shop owner installs a mirror at the ceiling corner to monitor a large area. Which property is being used?

(A) Image magnification
(B) Convergence of light
(C) Wide field of view
(D) Same-size image formation

Correct Answer: C

Explanation:

Convex mirrors provide a wide field of view and help monitor large areas.

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Question (9)

QN0028964

A concave mirror forms an enlarged erect image of a candle. If the candle is moved farther away, the image may become:

(A) Invisible
(B) Same size only
(C) Inverted
(D) Always erect

Correct Answer: C

Explanation:

A concave mirror can form an inverted image when the object is moved farther away.

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Question (10)

QN0028965

A student changes the angle of incidence from 25° to 50°. What happens to the angle of reflection?

(A) Remains 25°
(B) Becomes 100°
(C) Becomes 50°
(D) Becomes 75°

Correct Answer: C

Explanation:

Angle of reflection is always equal to angle of incidence.

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Question (1)

A student looks at himself in three mirrors. In Mirror P his image is always smaller and erect. In Mirror Q his image becomes inverted when he moves farther away. Mirror R always gives an image of the same size. Identify P, Q and R respectively.

Explanation:

Link:

Question (2)

A light ray strikes a mirror with an angle of incidence of 35°. What is the angle between the reflected ray and the normal?

Explanation:

Link:

Question (3)

A dentist wants an enlarged view of a patient's tooth. Which mirror should be used and why?

Explanation:

Link:

Question (4)

Two identical toy cars are placed at equal distances from a convex mirror and a plane mirror. Compared to the plane mirror image, the image in the convex mirror will be:

Explanation:

Link:

Question (5)

A driver wants to see the largest possible area behind a vehicle. Which mirror is most suitable?

Explanation:

Link:

Question (6)

A ray of light falls normally on a mirror surface. The angle of reflection is:

Explanation:

Link:

Question (7)

A student observes that several parallel light rays reflected from a mirror come closer together. The mirror is:

Explanation:

Link:

Question (8)

A shop owner installs a mirror at the ceiling corner to monitor a large area. Which property is being used?

Explanation:

Link:

Question (9)

A concave mirror forms an enlarged erect image of a candle. If the candle is moved farther away, the image may become:

Explanation:

Link:

Question (10)

A student changes the angle of incidence from 25° to 50°. What happens to the angle of reflection?

Explanation:

Link:

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