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A plano covex lens fits exactly in to a ...

A plano covex lens fits exactly in to a plano concave lens. Their plane surface are parallel to each other. If the lenses are made of different materials of refractive indices `mu_(1)` and `mu_(2)` and R is the radius of curvature of the curved surfaces of the lenses then the focal length of the combination is

A

`R/(mu_(1)-mu_(2))`

B

`(2R)/(mu_(1)-mu_(2))`

C

`R/(2(mu_(1)-mu_(2)))`

D

`R/(mu_(1)+mu_(2))`

Text Solution

Verified by Experts

The correct Answer is:
A
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