A plano-convex lens has focal length of 20 cm. the radius of its spherical suface is `(""_(a) mu_(g)=1.5)`

Find the radius of curvature of the convex surface of a plano-convex lens, whose focal length is 0.3 m and the refractive index of the material of the lens is 1.5.

A plano-convex lens mu = 1.5 has focal length of 18 cm in air. Calculate the radius of curvature of the spherical surface.

A plano convex lens has focal length f = 20 cm . If its plane surface is silvered, then new focal length will be

A plano convex lens has focal length f = 20 cm . If its plane surface is silvered, then new focal length will be

A plano-convex lens is made of flint glass, its focal length is

What is the focal length of double convex lens for which radius of curvature of either of the surfaces is 30 cm? [ ""_(a) mu_(g)=1.5]