Derive equation of standing waves and normal modes??? fast please ??
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as we know that standing waves are produced when 2 waves travelling in opposite directions are superimposed.
Y1=Asin(wt-kx)
Y2=Asin(wt+kx)
Yresultant=Y1+Y2
=A(sin(wt-kx)+sin(wt+kx))
=A2sinwtcoskx
=2Asinwt*coskx
hope this helps
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