Wave motionHardBloom L3

Question

A wave represented by the equation y = A cos (kx – ωt) is superimposed with another wave to form a statioary wave such that the point x =0 is a node. The equation of the other wave is:

Options

A.–A sin (kx + ωt)
B.– A cos (kx + ωt)
C.A sin (kx + ωt)
D.A cos (kx + ωt)

Solution

Sol. Check with all the options for condition of node at x = 0

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