1. The problem statement, all variables and given/known data A plane electromagnetic wave, which is polarized in the positive y-direction, propagates in the negative z-direction. What is the direction of the magnetic field of this wave? 2. Relevant equations My choices are: +z direction. -y direction. -x direction. +y direction. +x direction. -z direction. 3. The attempt at a solution I don't understand polarization much. Also, from what I know about electromagnetic waves the magnetic and electric fields point in two directions so I can't just answer one answer it would have to be two of the choices above but I don't have that option. Please Help! I Would really appreciate it! It's due tomorrow!!!