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Radius of curvature of first surface of ...

Radius of curvature of first surface of double convex lens is three times that of the other. If focal length of the lens is 30 cm and refractive index of the lens is 3/2, then radius of curvature of the first surface is

A

20cm

B

40cm

C

60cm

D

80cm

Text Solution

Verified by Experts

The correct Answer is:
C
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