Question
Fri February 08, 2013 By:
 displacement y =asin(kx-wt+ o) along a positive direction in x axis

Regarding + and - sign in displacement

Expert Reply
Fri February 08, 2013
As it is the equation is representation of progressive wave, the particle is -wt phase behind and so on.
where as in -ve direction it would be-(-wt)
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