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The velocity of light in glass whose ref...

The velocity of light in glass whose refractive index w.r.t, air is ` 1.5 ` is ` 2 xx 10^(8) m//s `. In a certain liquid, the velocity of light is found to be ` 2.5 xx 10^(8) m//s `. The refractive index of the liquid w.r.t. air is

A

`0.8`

B

`0.9`

C

`1.2`

D

`1.33`

Text Solution

Verified by Experts

The correct Answer is:
C
`C= 1.5 xx 2 xx 10^(8) = 3 xx 10^(8)` m/s
`therefore n_(L) = (V_(a))/(V_(L)) = ( 3 xx 10^(8))/( 2.5 xx 10^(8)) = 1.2`
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