20. If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is A. 90 degrees. B. 0 degrees. C. 80 degrees. D. 40 degrees.
If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is 40 degrees.
Question
Asked 3/18/2014 9:06:46 AM
Updated 1/1/2017 9:53:17 PM
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If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is 40 degrees.
Added 1/1/2017 9:53:17 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [1/1/2017 11:27:45 PM]

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