A transverse sinusoidal wave moves along a string in the positive x -direction at a speed of 10 ~cm / s . At a particular time t , the snap-shot of the wave is shown in figure. The speed of point P is x 2 ~m / s when its displacement is 10

Question

A transverse sinusoidal wave moves along a string in the positive x -direction at a speed of 10 ~cm / s . At a particular time t , the snap-shot of the wave is shown in figure. The speed of point P is x 2 ~m / s when its displacement is 10 2 ~cm , then the value of x is (wavelength of the above wave = 1 2 ~m )

Quantrex Academy · Accepted Answer

Correct answer: 2

y=10 4 x 10 2 =10 4 x y x =-40 4 x y x =- 40 2 V_ particle =-V_ wave y x V _ particle =10 ( 40 2 )= 400 2 ~cm / s =2 2 ~m / s

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