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If a convex lens is dipped in a liquid w...

If a convex lens is dipped in a liquid whose refractive index is equal to the refractive index of the lens, then lens acts like a

A

convcave lens

B

convex lens

C

plane glass slab

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
For lens
`1/f=(mu-1)(1/(R_1)-(1)/(R_2))` `" " ["Given",mu_(l)=mu_(g)]`
`"Here ",mu=""_(l)mu_(g)=(mu_g)/(mu_l)=(mu_g)/(mu_g)=1`
`implies1/f=0`
`f=oo="plane glass slab"`
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