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If in a planoconvex lens, the radius of ...

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

A

1.5

B

1.66

C

1.33

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH INSTITUTE-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - A)
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  15. A prism of refractive index sqrt(2) has a prism angle of 60^(@). At wh...

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  17. A person can see clearly only upto a distance of 25 cm. He wants to re...

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