Two plane mirrors are separated by an angle of 130°, if a ray of light strikes the first mirror at an angle of incidence of 70°. Calculate the angle of reflection at which the ray leaves the second mirror.
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Expert's answer
2019-06-10T09:47:57-0400
Using a law of reflection: angle of incidence equals to the angle of reflection, we find out that final angle of reflection is 60 degrees. (see figure)
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