The power of a double convex lens of radius of curvature R each is Y. The power of a plano convex lens of same material and of radius of curvature 2R is

A Convex Mirror Of Radius Of Curvature R

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

Power of biconvex lens is 10 diopters and radius of curvature of each surface is 10cm.Then refractive index of material of lens is

The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is,

The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is

The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is