BE 3 6 cm 4 12 cm A convex lens forms a real image of a

Last updated: 6/24/2023

BE 3 6 cm 4 12 cm A convex lens forms a real image of a point object at a distance of 50 cm from the convex lens A concave lens is placed 10 cm behind the convex lens on the image side On placing a plane mirror on the image side and facing the concave tens it is observed that the final image now coincides with the object itself The focal length of the concave lens is 1 50 cm 2 20 cm 3 40 cm I 25 cm