An electromagnetic wave in vacuum has the electric and magnetic fields E and B , which are always perpendicular to each other. The direction of polarization is given by X and that of wave propagation by k . Then : (1) X ||B and k||B E × (2) X||E and k||E B × (3) X||B and k||E B × (4) X||E and k||B E ×
sudhanshu , 11 Years ago
Grade 12