Question:

A point object in air is in front of the curved surface of a

Last updated: 6/12/2023

A point object in air is in front of the curved surface of a

A point object in air is in front of the curved surface of a plano convex lens The radius of curvature of the curved surface is 30 cm and the refractive index of the lens material is 1 5 then the focal length of the lens in cm is