Question

A point source is located at a distance of 20 cm from the front surface of a glass bi-convex lens.The lens has a thickness of 5 cm and radius of curvature of its surfaces is 5 cm. The refractive index of glass is 1.5. The distance of image formed by it from the rear surface of this lens is (approximately). (1) 9.2 cm (3) 5.7 cm (2) 63 cm (4) 4 cm

Answer 1

Answer:

the lens has thickness of 5 cm. the refractive index of glass is 1.5. the distance of image formed by it from the rear surface ...