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試卷名稱：113年 - 113 國立清華大學學士後醫學系單獨招生考試_學士後醫學系/智慧資訊科技組:資訊科學#119923
年份：113年
科目：學士後西醫◆資訊科學
24. For a classical electromagnetic plane wave travelling in a vacuum, which of the following statements is true?
(A) The magnetic and electric fields are perpendicular to each other, and there is a phase difference of π/2 between them.
(B) The average power delivered by the EM wave increases with the frequency of the EM wave.
(C) The traveling direction of the EM wave can be in either the direction of 
o
are the direction of the electric field and the magnetic field, respectively.
(D) The power of the EM wave decays as it propagates away from its source.
(E) None of the above.
