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what is correct wave equation y=A sin(wt-kx) or y=Asin(kx-wt) ???

what is correct wave equation 
y=A sin(wt-kx) or y=Asin(kx-wt) ???

Grade:11

1 Answers

Arun
25757 Points
5 years ago
Both are the correct forms.
 
They're essentially the same waves but hav a phase difference of 180 degrees
Asin(wt-kx) = -Asin(kx-wt) 
This proves it

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