question_answer

A wave represented by the equation \[{{y}_{1}}=A\,\cos \,(kx-\omega t)\] is superimposed with another wave to form a stationary wave such that the point x = 0 is a node. The equation of the other wave is

A) \[{{y}_{2}}=-A\sin (kx-\omega t)\]

B) \[{{y}_{2}}=-A\cos (kx+\omega t)\]

C) \[{{y}_{2}}=A\sin (kx+\omega t)\]

D) \[{{y}_{2}}=Acos(kx+\omega t)\]