Question Answers

Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 26 - Geometrical Optics > A plano-convex lens fits exactly into a plano-concave lens. Their plane surfaces are parallel to each other. If the lenses are made of different material of refractive indices μ1 ​and μ2 and R is the radius of curvature of the curved surface of the lenses, then focal length of the combination is :

A plano-convex lens fits exactly into a plano-concave lens. Their plane surfaces are parallel to each other. If the lenses are made of different material of refractive indices μ1 ​and μ2 and R is the radius of curvature of the curved surface of the lenses, then focal length of the combination is :

Angle of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angle of incident at which minimum deviation will be obtained is