Diameter of a plano convex lens is 6 cm and thickness at the

Last updated: 6/4/2023

Diameter of a plano convex lens is 6 cm and thickness at the centre is 3 mm If the speed of light in the material of the lens is 2 x 108 m s the focal length of the lens is CPMT 1989 JEE Mains 2013 b 20 cm d 10 cm a 15 cm c 30 cm