A ray of light strikes a plane mirror

PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Geometric Optics · Geometric Optics

Problem

A ray of light strikes a plane mirror, making an angle of 0.40 rad0.40\,\text{rad} with the normal at the point of incidence. (1) Determine the angle of reflection in radians. (2) Express the same angle of reflection in degrees to two significant figures.

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