What is the result of the addition of coherent light waves? Does the law of conservation of energy hold for interference?
October 29, 2020 | Education|
When coherent waves are added, an interference pattern of maxima and minima of illumination arises, stable in time, and at the maxima the energy is greater than the sum of the energies from both terms of the waves, and at the minima the energy is zero. With interference, a redistribution of energy occurs between the interference maxima and minima, but the average value of the energy at all points of the interference pattern is equal to the sum of the energies brought by both waves.
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