Ray Optics · Refraction
The magnitudes of power of a biconvex lens (refractive index 1.5) and that of a plano-concave lens (refractive index ) are same. If the curvature of plano-concave lens exactly matches with the curvature of back surface of the biconvex lens, then ratio of radius of curvature of front and back surface of the biconvex lens is .
- (1)
- (2)
- (3)
- (4)
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