The radius curvature of each surface of a convex lens of refractive index 1.5 is 40 cm. Calculate its power.

The radius of curvature of each surface of a convex lens of refractive index 1.5 is 40 cm. Calculate its power.

If radius of curvature of curved surface of plano-convex lens of refractive index 1.5 is 60 cm, then its focal length is ...... cm.

The radius of curvature of convex surface of a piano convex is.15 cm and refractive index of the lens is 1.6. The power of the lens is—

The radius of curvature of the convex surface of a planoconvex lens is 12 cm and its refractive index 1.5. If the plane face of the lens is silvered, then the distance from the lens at which parallel rays incident on its convex surface converge is

The radius of curvature of the curved surface of a plano-convex lens is 20 cm. If the refractive index of the material of the lens be 1.5, it will

The radius of curvature of the curved surface of a plano-convex lens is 20 cm . If the refractive index of the material of the lens be 1.5 , it will

The radius of curvature of the curved surface of a plano-convex lens is 20 cm . If the refractive index of the material of the lens be 1.5 , it will