Out of speed, frequency,and wavelength, name the parameters which remain same after reflection
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In a perfect reflection, the wave had as much energy coming in as it did going out. E = h* (frequency). So, frequency has to stay the same if E stays the same. Since group speed = (wavelength) * (frequency) and group speed and frequency stay the same, wavelength also has to stay the same.
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speed frequency and wavelength the parameters which remain same after reflication is please call to HR frequency
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