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7 Active Technology Solutions: Interference and Law of Conservation of Energy

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It appears that energy is destroyed at the points of destructive interference and created at the points of constructive interference. So, the law of conservation of energy appears to be violated. But this is not correct. The energy is redistributed in the space. The energy is only transferred from the region of destructive interference to the region of constructive interference, the average energy being always equal to the sum of the energies of the interfering waves. [3:01]

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