Laws of Reflection

See how the laws of reflection work: (1) the incident and the reflected rays (both yellow) and the normal (orange) to the surface of reflection all lie in the same plane; and (2) the angle of the incident ray is equal to the angle of the reflected ray; in symbols, (Subscript[θ, i])=(Subscript[θ, r]).

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Contributed by: Enrique Zeleny

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