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A convex glass lens of focal length 20 c...

A convex glass lens of focal length 20 cm and refractive index 1.5 is immersed in water of R.I. `4//3`. What is the change in its focal length ?

A

`0.45` m

B

`0.15` m

C

`0.30`m

D

`0.6` m

Text Solution

Verified by Experts

The correct Answer is:
D
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