Physics - Geometrical Optics Question with Solution | TestHub

A thin convex lens is made of a material of refractive index 1.6. An object is kept at a distance $u$ from the lens on the principal axis as shown in the figure. The radii of curvature of the surfaces are 10 cm and 5 cm. Now, the lens is reversed such that the face having radius of curvature 5 cm lies close to the object. The difference in image positions as obtained for both the cases is equal to