physics help: Who knows physics and can help me understand constructive and destructive interference? - Help.com



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Who knows physics and can help me understand constructive and destructive interference?


This open post was written 2 months, 4 weeks ago | V/U/S: 48, 2, 3 | Edit Post | Leave a reply | Report Post


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Kos offline Verified User (3 months, 3 weeks) Long Term User Shouts: 74 #
An Unknown Location | 2 months, 4 weeks ago (13 hours, 39 minutes after post)

imagine two waves.. sinusoidal of course

when the crest of 1 wave coincides with the crest of the other, or the trough of one meets the trough of the other, we get a resultant crest/trough equal to the sum of the amplitudes of the 2 crests/troughs…. this is CONSTRUCTIVE interference.

similarly
when the crest of 1 wave coincides with the tough of the other or vice versa, we find that the resultant crest/trough formed depends on whose amplitude was greater.. crest larger than trough gives u crest and so on…the difference in amplitudes gives u the amplitude of the resultant.

this is DESTRUCTIVE interference..

Its not entirely accurate but should give u a pretty good idea…

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tilwe64 offline Verified User (2 months, 4 weeks) Shouts: 0 #
An Unknown Location | 2 months, 4 weeks ago (1 day, 15 hours after post)

under graduted

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