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 Discussion Response Post to:
the
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![[Post New]](/templates/default/images/icon_minipost_new.gif) 14 Apr 2008 20:38:41 IST
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hint:
if y=Asin(wt-kx) and y=Asin(Kx+wt) be the waves which together produce standing waves then the equation of those waves becomes
y2Acos kx sin wt
speed of wave is w/k
wavelength is 2pi/k
also node occurs when x=(n+0.5)lambda/2
antidode at n\lambda/4
so just compare the coefficients of the expressions
also cos(x+\pi/2)=sin x
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