Question

In a plano-convex lens radius of curvature of the lens is 10 cm. If the plane side is polished, then the magnitude of the focal length of the mirror so formed will be (refractive index = 1.5) (2x) cm. Find value of x.

Answer 1

Answer -

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• A spherical surface of radius of curvature R separates air (refractive index 1.0) from glass A concave lens of glass, refractive index 1.5 , has both surfaces of the same radius.

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