A plano convex lens (μ = 1.5) with radius of curvature 20 cm is silvered at the curved surface. The power of the system is :

A plano convex lens (μ = 1.5) with radius of curvature 20 cm is silv

1.	A plano convex lens (μ = 1.5) with radius of curvature 20 cm is silvered at the curved surface. The power of the system is :
A.	15 D
B.	10 D
C.	5 D
D.	2.5 D
Answer» E.

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A plano convex lens (μ = 1.5) with radius of curvature 20 cm is silvered at the curved surface. The power of the system is :

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