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Focal length of convex lens in air is 16...

Focal length of convex lens in air is 16 cm (`mu_(glass) = 1.5`). Now the lens is submerged in liquid of refractive index 1.42. Find the ratio of focal length in medium to focal length in air has closest value

A

9

B

17

C

1

D

5

Text Solution

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A
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