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The radius of curvature of curved surfac...

The radius of curvature of curved surface at a thin planoconvex lens is 10 cm and the refractive index is 1.5. If the plane surface is silvered, then the focal length will be,

A

5cm

B

10cm

C

15cm

D

20 cm

Text Solution

Verified by Experts

The correct Answer is:
B
10cm
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