Show that a ray of light reflected from a plane mirror rotates through an angle when…

PHYSICS · Subjective · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

Show that a ray of light reflected from a plane mirror rotates through an angle 2θ2\theta when the mirror is rotated through an angle θ\theta about an axis perpendicular to both the incident ray and the normal to the surface.

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