44. The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in St units. What is the speed of the EM wave?
(A) 3 x 108m/s
(B) 100m/s
(C) 106m/s
(D) 2 x 107m/s
(E) 2x108m/s

答案:登入後查看
統計: A(17), B(0), C(0), D(0), E(0) #3081284

詳解 (共 1 筆)

#7092146
1. 題目解析 題目中提到的「平面極化...
(共 988 字,隱藏中)
前往觀看
0
0