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The focal length of a convex lens of R.I...

The focal length of a convex lens of R.I. 1.5 is f when it is placed inair. When it is immersed in a liquid it behaves as a converging lens its focal length becomes `xf(x gt 1)`. The refractive index of the liquid.

A

`gt 3//2`

B

`lt 3//2 and gt 1`

C

` lt 3//2`

D

`=3//2`

Text Solution

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The correct Answer is:
B
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