JEE Main & Advanced
Physics
Ray Optics
Question Bank
Refraction at Curved Surface
question_answer
If in a plano-convex lens, the radius of curvature of the convex surface is 10 cm and the focal length of the lens is 30 cm, then the refractive index of the material of lens will be [CPMT 1986; MNR 1988; MP PMT 2002; UPSEAT 2000]