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There is a small air bubble at the centr...

There is a small air bubble at the centre of a solid glass sphere of radius r and refractive index `mu` . What will be the apparent distance of the bubble from the centre of the sphere, when viewed from outside?

A

r

B

`( r )/(mu)`

C

`r(1-(1)/(mu))`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
Since the air bubble is present at the centre of the solid glass sphere, light rays coming from the air bubble is incident normally on the surface of the sphere. Therefore no deviation of light rays occurs in this case. So the air bubble is seen at its original position.
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