Ray Optics-Magnification (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 6 - 8 of 8

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Question number: 6

» Ray Optics » Magnification

MCQ▾

Question

A lens is placed between a source of light and a wall. It forms images of area A 1 and A 2 on the wall for its two different positions. The area of the source of light is,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 7

» Ray Optics » Magnification

MCQ▾

Question

A 0.2 cm high object is placed 15 cm from a concave mirror of focal length 5 cm. Find position and size of the image.

Choices

Choice (4) Response

a.

7.5 cm, 0.1 cm.

b.

7.5 cm, 0.4. cm.

c.

7.5 cm, 0.4 cm.

d.

10.0 cm, 0.5 cm.

Question number: 8

» Ray Optics » Magnification

MCQ▾

Question

A 0.5 cm high object is placed at 30 cm from a convex mirror whose focal length is 20 cm. Find the position and size of the image.

Choices

Choice (4) Response

a.

6 cm, 0.5 cm

b.

12 cm, 0.2 cm

c.

5 cm, 0.1 cm

d.

18 cm, 0.2 cm

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