36 A thick plano convex lens is silvered at both surfaces A

Last updated: 6/13/2023

36 A thick plano convex lens is silvered at both surfaces A point source of light S is placed inside the lens at a distance of 2 cm from curved surface having radius of curvature shown in the figure If the images formed due to direct reflections from the plane and curved surface coincide then the thickness of the lens is 1 6 cm 2 20 3 cm 3 7 cm 4 3 cm S D TITT 8 3 cm as