In a plano-convex lens the radius of curvature of the convex lens is 10 cm. If the plane side is polished, then the focal length will be (Refractive index=1.5)

In a plano-convex lens radius of curvature of the lens is 10 cm. if the plane side polished, then the magnitude of the focal length of the mirror so formed will be (refractive index =1.5) (2x) cm . Find value of x.

If in a plano-convex lens, the radius of curvature of the convex surface is 10cm and the focal length of the lens is 30cm, then what is the refractive index of the material of lens ?

If in a plano-convex lens, the radius of curvature of the convex surface is 10 cm and the focal length of the lens is 30 cm , then the refractive index of the material of lens will be

If in a plano-convex lens, the radius of curvature of the convex surface is 10 cm and the focal length of the lens is 30 cm , then the refractive index of the material of lens will be

If in a plano-convex lens, the radius curvature of the convex surface is 10 cm and the focal length of the lens is 20 cm , then the refractive index of the material of lens will be

If in a planoconvex lens, the radius of curvature of the convex surface is 10cm and the focal length is 30 cm , the refractive index of the material of the lens will be

If in a planoconvex lens, the radius of curvature of the convex surface is 10cm and the focal length is 30 cm , the refractive index of the material of the lens will be

The radius of curvature for a convex lens is 40 cm , for each surface. Its refractive index is 1.5. The focal length will be