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A convex lens made of glass has focal le...

A convex lens made of glass has focal length 0.15 m in air. If refractive index of glass is `3//2` and that of water is `4//3`, the focal length of lens when immersed in water is

A

0.6 m

B

0.45 m

C

0.15 m

D

0.30 m

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