Does the speed of light change when it undergoes reflection .why?
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Light changes energy during reflection or refraction. However it maintains its constant speed. The change in this energy is detected as a change in the frequency and/or wavelength.
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In this sense, we say that the light has not slowed down, even though it has changed direction in the middle of its journey. Light changes energy during reflection or refraction. However it maintains its constant speed. The change in this energy is detected as a change in the frequency and/or wavelength.
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