Question

18 Two plane mirrors are inclined to each other at some angle.A ray of light incident at 30° on one, after reflection from the other retraces its path. The angle between the mirrors is (a) 30°(b)45°(c) 60°(d) 90°. pls write relevant answers .Also write the solution in papers. Don't run for points. This app is learning app but not a point achieveing app. This is a knowledge sharring app .so don't post disgusting answers.​.​

Answer 1

Answer:

hope this is the correct answer

Explanation:

thank you tejas bro.