3 34 The radi of curvature of the surfaces of a double

Last updated: 6/10/2023

3 34 The radi of curvature of the surfaces of a double convex lens are 20 cm and 40 cm respectively and its focal length is 20 cm What is the refractive inder of the material of the lens 512 b c 3 35 A convex lens is dipped in a liquid 5 3 d 5