Question

The refractive index of the material of a double convex lens is 1.5 and
its focal length is 5 cm. If the radii of curvatures are equal, the value of
radius of curvature is (in cm)
1)5
2) 6.5
3) 8
4) 9.5
​

Answer 1

Answer:

The radius of curvature is

=5cm

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