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A transparent cube of 15 cm edge contain...

A transparent cube of 15 cm edge contains a small air bubble. Its apparent depth when viewed through one face is 6 cm and when viewed through the opposite face is 4 cm. The refractive index of the material of the cube is

A

`2.0`

B

`2.5`

C

`1.6`

D

`1.5`

Text Solution

Verified by Experts

The correct Answer is:
D
Here real thickness of slab = 15 cm and apparent thickness `=6+4=10cm`.
`therefore" Refractive index n"=(15)/(10)=1.5`
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