A convex lens of focal length 15 cm and a concave mirror of focal length 30 cm are kept with their
Channel: Doubtnut
Date: 2020-01-28

A convex lens of focal length 15 cm and a concave mirror of focal length 30 cm are kept with their optic axis PQ and RS parallel but separated in vertical directiion by 0.6 cm as shown . The distance between the lens and mirror is 30 cm . An upright object AB of height 1.2 cm is placed on the optic axis PQ of the lens at a distance of 20 cm from the lens . if A\'B\' is the image after refraction from the lens and the reflectiion from the mirror , find the distance of A\'B\' from the pole of the mirror and obtain its magnification . Also locate positions of A\' and B\' with respect to the optic axis RS.