Hello Fellow Interested I can\'t quite understand how 2 sources of sound can pro

Question

Hello Fellow Interested

I can't quite understand how 2 sources of sound can produce a soundseperatly, but when played together (I think 180 degrees out ofphase, correct me if I'm wrong please) no sound will be heard..Iunderstand how the amplitudes cancel eacht other out but! they bothhave a positive intensity! and using superposition the soundsources played together should have a positive intensity too! butI'm guessing when played together the intensity is zero, how isthis possible, and what's happening to the energy during thisproces?
Thank you!!

Explanation / Answer

If 2amplitudes produced are A1 and A2 separated by phase then the resultant amplitude A is given by:

A2=A12+A22 + 2A1A2 cos

IfA1=A2 and the two amplitudes are out of phase i.e.=1800 we get A=0

Hencenet amplitude is 0………..

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