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A thin convex lens made from crown glass...

A thin convex lens made from crown glass `(mu=(3)/(2))` has focal length f. When it is measured in two different liquids having refractive indices `(4)/(3)` and `(5)/(3)`, it has the focal lengths `f_1` and `f_2` respectively . The correct relation between the focal lengths is ,

A

`f_(1)=f_(2)ltf`

B

`f_(1)gtfandf_(2)` becomes negative

C

`f_(2)gtfandf_(1)` becomes negative

D

`f_(1)andf_(2)` both become negative

Text Solution

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The correct Answer is:
B
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