Consider the three waves $z_1, z_2$ and $\mathbb{Z}_3$ as
$\mathbf{z_1 = A \sin(kx - \omega t)}$ , $\mathbf{z}_2 = A \sin(kx + \omega t)$
and $z_3 = A \sin(ky - \omega t)$ . Which of the following represents a standing wave
Text Solution
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Waves $Z_{1} = A \sin(kx - \omega t)$ is travelling towards positive x-direction.
Wave $Z_{2} = A \sin(kx + \omega t)$ , is travelling towards negative x-direction.
Wave $Z_3 = A \sin(ky - \omega t)$ is travelling towards positive y direction.
Since waves Z 1 and Z 2 are travelling along the same line so they will produce stationary wave.
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