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When a lens of refractive index n(1), th...

When a lens of refractive index `n_(1)`, then the lens looks to be dissapeared only, if

A

`n_(1)=n_(2)//2`

B

`n_(1)=3n_(2)//2`

C

`n_(1)=n_(2)`

D

`n_(1)=5n_(2)//2`

Text Solution

Verified by Experts

The correct Answer is:
C
(c ) If refractive index of lens `n_(1)` is equal to refractive index of liquid `n_(2)`, then lens behaves as a plane glass plate and becomes invisible in the medium.
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