A ray of light reflects from a smooth surface so that the reflected ray makes an…
PHYSICS · Subjective · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
A ray of light reflects from a smooth surface so that the reflected ray makes an angle of 18° with the surface itself (not with the normal). State the angle that the incident ray makes with the surface and explain in one concise sentence why this is so.