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A plano convex lens fits exactly into a ...

A plano convex lens fits exactly into a plano concave lens. Their plane surface are parallel to each other. If lenses are made at different materials of refractive indicies `mu_(1) and mu_(2)` and R is the radius of curvature of length of the combination is

A

`R/(mu_1+mu_2)`

B

`R/(mu_1-mu_2)`

C

`R/(2(mu_1-mu_2))`

D

`R/(2mu_1-mu_2)`

Text Solution

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The correct Answer is:
C
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