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Calculating angle of incidence

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A person stands 3.4m in front of a wall that is covered floor-to-ceiling with a plane mirror. His eyes are 2.0m above the floor. He holds a flashlight between his feet and manages to point it at the mirror. At what angle of incidence must the light strike the mirror so the light will reach his eyes?

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This solution provides a brief answer for finding angle of incidence using reflection.

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