問題詳情

46. The path difference between two waves is 5 m. If the wavelength of the waves emitted by the twosources is 4 m, what is the phase difference (in degrees)?
(A) 90
(B) 400
(C) 1.57
(D) 7.85
(E) 15

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增