Question

Please answer: Two plane mirrors are kept perpendicular to each other. A light ray strikes the first mirror making an angle of 30degree with the mirror. With the help of a ray diagram
showing the path of the reflected ray till it gets reflected from the second mirror. Also,

calculate the angle of reflection for the light ray coming out of the second mirror.

Answer 1

Answer:

Explanation:

θ. Then by joining the perpendiculars of two mirrors it is clear from the diagram that angle of incidence at horizontal mirror is (90−θ).

∴ reflected ray from horizontal mirror makes angle θ with the horizontal mirror also incident ray at vertical mirror makes angle θ with horizontal axis.

∴ reflected ray is parallel to the original ray.

This is true for two perpendicular mirrors fixed at any positions.