46. The path difference between two waves is 5 m. If the wavelength of the waves emitted by the two
sources is 4 m, what is the phase difference (in degrees)?
(A) 90
(B) 400
(C) 1.57
(D) 7.85
(E) 15
答案:登入後查看
統計: A(14), B(1), C(0), D(2), E(1) #3081286
統計: A(14), B(1), C(0), D(2), E(1) #3081286