【简答题】电场复矢量振幅为E i (r)=5(e x -je y )e -jπz V/m的均匀平面电磁波由u r =1,ε r =9的理想介质垂直射向空气,若界面为z=0的平面, (1)试说明入射波的极化状态; (2)试求反射波电场的复矢量振幅E r (r); (3)试求当入射角θ i 为何值时,反射波为线极化波; (4)试求当入射角θ i 为何值时进入空气的平均功率的z分量为零。
【判断题】Unlike "The Raven", in which the narrator believes he will "never more" be reunited with his love, "Annabel Lee" says the two will be together again, as not even demons "can ever dissever" their souls...