Question

Two mirrors are at 60° angle with each other. A ray of light is incident on one mirror at an angle of
40° as shown in the figure. What is the angle of reflection of final reflected ray from the second mirror?
40°
(1) 20
(12) 50
(3) 60°
(4) 70°​

Answer 1

angle of incidence=angle of reflection

=40

90-40=50

180-(50+60)=180-110=70