問題詳情

10. Two waves traveling in opposite directions interfere to produce a standing wave described byy = 3 sin(2x) cos (5t) where x is in m and t is in s. What is the wavelength of the interferingwaves?
(A) 3.14 m
(B) 1.00 m
(C) 2.00 m
(D) 6.28 m
(E) 12.00 m

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面試倒楣鬼-22幸運上後西】評論

k = 2 =  2π/λ,.....★★★★★★,...