question_answer

Two plane mirrors are inclined at an angle of \[{{60}^{o}}\] as shown in the figure. A ray of light parallel to Mirror 1 strikes the Mirror 2. At what angle will the ray finally emerge?

Answer:

The angle that the ray makes after each reflection is clearly labelled in the adjacent figure. It is clear that the final ray makes an angle of 600 with the horizontal, or in other words it emerges parallel to Mirror 1.