A plate with plane-parallel faces and refractive index rests on a plane mirror
PHYSICS · Subjective · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
A plate with plane-parallel faces and refractive index 1.8 rests on a plane mirror. A light ray is incident on the upper face of the plate at 60∘. How far from the entry point will the ray emerge after reflection by the mirror if the plate is 6cm thick?