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A small object is placed 20 cm in front ...

A small object is placed 20 cm in front of a block of glass 10 cm thick and its farther side silvered. The image is formed 22 cm behind the silvered face. Find the refractive index of glass.

A

1.15

B

1.25

C

1.67

D

1.1

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-RAY OPTICS AND OPTICAL INSTRUMENTS-Assignment (Section - A) Objective Type Questions (One option is correct)
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  14. A lens made of material of Refractive index mu(2) is surrounded by a m...

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  15. The radii of curvatures of a convex lens are 0.04 m and 0.04m. Its ref...

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  16. For a plano convex lens, the radius of curvature of convex surface is ...

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  18. A light ray is incident normally on one of the refracting faces of a p...

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