試卷名稱:112年 - 112 台灣聯合大學系統_碩士班招生考試:普通物理#117881
年份:112年
科目:研究所、轉學考(插大)◆普通物理學
14. A plane electromagnetic (EM) sinusoidal wave propagates in the x direction. Suppose the wavelength is 500.0 nm and the electrical field has an amplitude of 300.0 V/m. What is the intensity (average of poyting vector) of this EM wave (uo = 4π X 10-7N/A2,ε0= 8.85x10-12 F/m)
(A)477.5 J/s.m2,
(B) 337.6 J/s.m2,
(C) 238.7 J/s.m2 ,
(D) 168.8 J/s.m2,
(E) 119.4 J/s.m2.