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If in a plano-convex lens, the radius of...

If in a plano-convex lens, the radius of curvature of the convex surface is 10 cm and the focal length of the lens is 30 cm , then the refractive index of the material of lens will be

A

1.5

B

1.66

C

1.33

D

3

Text Solution

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The correct Answer is:
3
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