hs of focal length 0 33m 4 None of the above The focal

Last updated: 6/27/2023

hs of focal length 0 33m 4 None of the above The focal length of a plano concave lens is 10 cm then its focal length when its plane surface is polished is n 3 1 20 cm 4 none of these 2 5 cm 3 5 cm A combination of two thin lenses with focal lengths f and f respectively forms an image of distant object at dis