問題詳情

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

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增