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Classical Physics
Optics
Energy of Electromagnetic Waves in Destructive Interference
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[QUOTE="keep_it_simple_silly, post: 6814007, member: 729886"] Yes, there is no sudden discontinuity in the power radiation as the distance between sources decreases. The formula which represents all cases is (formula is given by [B]Vanderkooy[/B] and [B]Lipshitz [/B]in their paper Power response of loudspeakers with noncoincident drivers – The influence of crossover design) :- [ATTACH type="full" width="204px" alt="1666624775874-png.png"]315966[/ATTACH] Where, [LIST=1] [*]P is total power radiated by both sources [*]P0 is the power radiated by single source in absence of other source [*]k=2π/λ, λ is wavelength of source [*]d is the distance between 2 sources [*]θ is the phase difference between 2 sources [/LIST] If you plot graph for this particular equation, it looks like following for a phase difference of 0:- [ATTACH type="full" width="296px" alt="1666624858340-png.png"]315967[/ATTACH] you can see for larger distances(d>>λ), it is converging to 2P_0, and this is where the 'energy redistribution' argument roughly fits. Why rough? because you can see the graph still oscillating, but with minimum amplitude. Im not sure if external links will be allowed by moderators but if they allow:- [URL]https://hackmd.io/@sharada10/wave_interference_energy_conservation[/URL] [/QUOTE]
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Energy of Electromagnetic Waves in Destructive Interference
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