The reflection of a beam of light off a plane mirror is best looked at as if made up of a number of rays:
As with a single ray of light, the angles of incidence equal the angles of reflection. The beam remains parallel.
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The reflection of a beam of light off a plane mirror is best looked at as if made up of a number of rays:
As with a single ray of light, the angles of incidence equal the angles of reflection. The beam remains parallel.
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