Ray Optics-Mirror Formula (NEET Physics): Questions 5 - 7 of 7

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Question number: 5

» Ray Optics » Mirror Formula

MCQ▾

Question

A short linear object of length b lies along the axis of a concave mirror of focal length f at a distance u from the pole of the mirror. Find the approximate size of the image.

Choices

Choice (4) Response

a.

b(fuf)2

b.

b(fu+f)2

c.

b(2fuf)2

d.

All of the above

Question number: 6

» Ray Optics » Mirror Formula

MCQ▾

Question

A small point object is placed at O, at a distance of 0.60 meter in air from a convex spherical surface of refractive index 1.5. If the radius of the curvature is 25 cm, then what is the position of the image on the principal axis?

Choices

Choice (4) Response

a.

1.5 m

b.

4.5 m

c.

2.5 m

d.

5.5 m

Question number: 7

» Ray Optics » Mirror Formula

MCQ▾

Question

An object is placed at a distance of 50 cm from a convex mirror. A plane mirror is placed in front of the convex mirror in such a way that it convers half of the convex mirror. If the distance between object and plane mirror is 30 cm then there is no parallax between the images formed by two mirrors, the radius of curvature of convex mirror will be:

Choices

Choice (4) Response

a.

50 cm

b.

25 cm

c.

100cm

d.

12.5 cm

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