
One end of a cylindrical rod of glass shown in the figure is given a spherical shape of the radius

. On the left side of this end is placed an object at a distance of . Find out the distance () of the image.


Important Questions on Refraction of Light at Spherical Surfaces : Lenses
The radii of curvature of a double convex lens are and and the refractive index of its glass is . Calculate the focal length of the lens.

The radii of curvature of a double concave lens are and and the refractive index of its glass is . Calculate the focal length of the lens.

The radius of curvature of each face of a biconcave lens made of glass of refractive index is . Calculate the focal length of the lens in air.

Calculate the focal length of a convex lens whose radii of curvature of two surfaces is and respectively and its refractive index is .

The radius of curvature of the convex face of a plano-convex lens is and the refractive index of its material is . Find the focal length of the lens.

The radii of curvature of the two faces of a convex lens are and respectively. If the focal length of the lens is , find the refractive index of the material of the lens.

The radii of curvature of the two surfaces of a convexo-concave lens are and . Find the focal length of the lens. Take refractive index of the lens material to be .

A bi-convex spherical lens A has a focal length of . If it is split along a plane into two halves to form two plano convex lenses,then what will be the focal length of each plano-convex lens?
