Why does frequency of a wave remain constant when reflected or refracted?
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It'll have the same frequency. It'll have the same wavelength. ... when light travels from one medium to another only speed of the light and wavelengthchanged and frequency does NOT change , it remains constant in all medium . the speed of light and wavelength changes in order to maintain the constant frequency
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When light refract or reflect then as we know that time period is constant when light travels in one form without change of form. Then as we know, time period is inversly proportional to frequency then if time period constant so frequency constant. This is all because of light travels without change of form .
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