A concave mirror of focal length`20cm`is cut into two parts from the middle and the two parts ar
Channel: Doubtnut
Date: 2020-08-23

A concave mirror of focal length`20cm`is cut into two parts from the middle and the two parts are moved perpendicularly bya  distanc e`1cm`from the previous principal axis`AB`.find the distance between the images fromed by the two parts?