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Question
When two waves with same frequency and constant phase difference interfere,
Options
there is a gain of energy
there is a loss of energy
the energy is redistributed and the distribution changes with time
the energy is redistributed and the distribution remains constant in time.
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Solution
the energy is redistributed and the distribution remains constant in time.
The energy is redistributed due to the presence of interference. However, as the frequency and phase remain constant , the distribution also remains constant with time.
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