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An object is placed 20cm in front of a b...

An object is placed `20cm` in front of a block of glass `10cm` thick having its farther side silvered. The image is formed `23.2cm` behind the silvered face. The refractive index of glass is

A

`1.41`

B

`1.46`

C

`200//132`

D

`1.61`

Text Solution

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The correct Answer is:
C
N//a
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Knowledge Check

  • 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.

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    D
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