Three sinusoidal waves of the same frequency travel along a string in positive direction of an x

問題詳情

22. Three sinusoidal waves of the same frequency travel along a string in positive direction of an x axis. Their amplitudesare y1 ,y1/ 2and y1/3 , and their phase constants are 0, π/2, and π, respectively. What is the phase constant of resultantwave?
(A) 30°
(B) 37°
(C) 45°
(D) 53°
(E) 60°

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