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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.
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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