REFRACTION AT A SPHERICAL SURFACE

Let us consider, LMN represents a ‘convex’ spherical surface of radius of curvature ‘R’ of refractive index ‘’. Consider a point object ‘O’ on the principal axis situated in an optically rarer medium of . . A ray ‘OA’ incident at an angle ‘i’ is refracted along ‘AI’. Another ray ‘OM’ incident normally on the […]