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The power of a biconvex lens is 10 diopt...

The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is

A

`9/8`

B

`5/3`

C

`3/2`

D

`4/3`

Text Solution

Verified by Experts

The correct Answer is:
C
Power `(P) = 100/f implies f = 100/100 = 10 cm`
`f = (R)/(2(mu - 1)) implies 10 = 10/(2(mu - 1))`
`implies (mu - 1) = 1/2 implies mu = 3/2`
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