A ray of light is incident at 50° on the middle of one of the two mirrors arranged at an angle of 60° between them….

Q. A ray of light is incident at 50° on the middle of one of the two mirrors arranged at an angle of 60° between them. The ray then touches the second mirror, get reflected back to the first mirror, making an angle of incidence of
(a) 50°
(b) 60°
(c) 70°
(d) 80°
Ans: C

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