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Travelling Waves

Quick practice

Question 1 of 5

A wave represented by the equation y=a \cos (k x-\omega t) is superposed with another wave to form a stationary wave such that point x=0 is a node. The equation for the other wave is

A

-a \cos (k x-\omega t)

B

-a \sin (k x-\omega t)

C

-a \cos (k x+\omega t)

D

a \sin (k x+\omega t)

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