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An air bubble inside a glass sphere of r...

An air bubble inside a glass sphere of radius 0.02 m, R.1. = 1.5 appears at a depth of 0.01 m from surface through which it is viewed. Actual position of bubble from surface is

A

0.009 m

B

0.012 m

C

0.015 m

D

0.02 m

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