The focal length of a plano-convex lens is equal to its radius of curvature. The value of the refractive index of its material is

The focal length of a double convex lens is equal to radius of curvature of either surface. The refractive index of its material is

The focal length of an equiconvex lens is equal to radius of curvature of either surface. What is the refractive index of the material of the prism ?

The focal length of an equiconcave lens is 3/4 times of radius of curvature of its surfaces. find the refractive index of the material of lens. under what condition will this lens behave as a converging lens?

Find the focal length of equivalent mirror if concave surface of a plano concave lens is silvered. Radius of curvature of concave surface is R and refractive index of material of prism is mu .

A convex lens has the same radius of curvature (R ) for both the surfaces. For what value of the refractive index of the material of the convex lens, the numerical values of f and R are equal ?

The refractive index and the focal length of a plano convex lens are 1.5 and 50 cm respectively. What is the radius of curvature of the curved surface ?

A biconvex lens has a focal length half the radius of curvature of either surface. What is the refractive index of lens material ?

If the plane surface of a plano-convex lens of radius of curvature R and refractive index mu is silvered, then its focal length would be