59 A plano convex lenx u 1 5 has radius of curvature 10 cm

Last updated: 5/31/2023

59 A plano convex lenx u 1 5 has radius of curvature 10 cm It is silvered on its plane surface Find focal length after silvering 1 10 cm 2 20 cm 3 15 cm 4 25 cm