Ray Optics-Reflection and Refraction of Light (NEET Physics): Questions 16 - 20 of 23

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Question number: 16

» Ray Optics » Reflection and Refraction of Light » Spherical Surface

Assertion-Reason▾

Assertion (Ꭺ)

When an object is placed between two plane parallel mirrors. Then all the images found are of different intensity.

Reason (Ꭱ)

In case of plane parallel mirrors, only two images are possible.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 17

» Ray Optics » Reflection and Refraction of Light » Spherical Surface

MCQ▾

Question

Two plane mirrors are inclined to each other at some angle. A ray of light incident at 30° on one, after reflection from the other retraces its path. The angle between the mirrors is

Choices

Choice (4) Response

a.

45°

b.

60°

c.

90°

d.

30°

Question number: 18

» Ray Optics » Reflection and Refraction of Light » Smooth Surface

MCQ▾

Question

Which of the following form (s) a virtual and erect image for all positions of the object?

(1) Convex lens (2) Concave lens

(3) Convex mirror (4) Concave mirror

Select the correct answers and mark it according to the following codes:

Codes:

Choices

Choice (4) Response

a.

1, 2 and 3 are correct

b.

1 and 3 are correct

c.

2 and 4 are correct

d.

1 and 2 are correct

Question number: 19

» Ray Optics » Reflection and Refraction of Light » Spherical Surface

MCQ▾

Question

The plane of a mirror makes an angle of 30° with horizontal. If a vertical ray is incident on a mirror, then what is the angle between mirror and reflected ray?

Choices

Choice (4) Response

a.

90°

b.

60°

c.

30°

d.

45°

Question number: 20

» Ray Optics » Reflection and Refraction of Light » Smooth Surface

MCQ▾

Question

The light reflected by a plane mirror will not form a real image

(1) If the rays incident on the mirror are diverging

(2) Under no circumstances

(3) If the object is real

(4) If the rays incident on the mirror are converging

Select the correct answers and mark it according to the following codes:

Codes:

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

2 and 4 are correct

c.

1 and 3 are correct

d.

1, 2 and 3 are correct

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