Two convex lens each of focal length 50 cm and a concave

Last updated: 6/7/2023

Two convex lens each of focal length 50 cm and a concave lens of focal length 20 cm are placed in closed contact The power of combination is 50 cm a dd di 20 cm ichu ych wada s Age 44YTH ZUI a A B C 1 D 9 D 1 D