A convex lens of focal length 10cm is placed 30 cm in front of a second convex lens also
Channel: Doubtnut
Date: 26/07/2020

A convex lens of focal length 10cm is placed 30 cm in front of a second convex lens also of th esame focal length. A plane mirror is placed after the two lenses. Where should a point object be placed in front of the first lens so that it imagees on to itself?