- #1

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1)Is it true that y = a sin(wt) is the equation of a wave pulse and y = a sin(wt – kx) is the equation of a progressive wave?

I think it is true.

2)Will the following 2 waves produce stationary waves?

y1 = a cos(kx – wt)

y2 = a sin(kx + wt)

I think the answer is No. What do you say Sir?