# NEET Physics Waves Questions Solved

A wave represented by the given equation $y=a\mathrm{cos}\left(kx-\omega \text{\hspace{0.17em}}t\right)$ is superposed with another wave to form a stationary wave such that the point x = 0 is a node. The equation for the other wave is

(1) $y=a\mathrm{sin}\left(kx+\omega \text{\hspace{0.17em}}t\right)$

(2) $y=-a\mathrm{cos}\left(kx+\omega \text{\hspace{0.17em}}t\right)$(3) $y=-a\mathrm{cos}\left(kx-\omega \text{\hspace{0.17em}}t\right)$

(4) $y=-a\mathrm{sin}\left(kx-\omega \text{\hspace{0.17em}}t\right)$

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