Two plane mirrors AB and AC are inclined at an angle 0 20 A

Last updated: 6/8/2023

Two plane mirrors AB and AC are inclined at an angle 0 20 A ray of light starting from point P is incident at point Q on the mirror AB then at R on mirror AC and again on S on AB finally the ray ST goes parallel to mirror AC The angle which the ray makes with the normal at point Q on mirror AB is A 20 B 30 C 40 D 60 P R