Physics - Geometrical Optics Question with Solution | TestHub

A plano-convex lens fits exactly into a plano-concave lens. Their plane surfaces are parallel to each other. If lenses are made of different materials of refractive indices ${\mu }_1$ and ${\mu }_2$ and $R$ is the radius of curvature of the curved surface of the lenses, then the focal length of the combination isNEET 2013 (All India)