Recent content by priceless

Apologies, it was determine the propagation vector from this equation of a plane-polarized wave.

Homework Statement E(x,y,t)=(2i/sqrt(5)) + (j/sqrt(5)) Eo cos( 2pi(1/lamda)[2x/sqrt(5) - y/sqrt(5)]-[ft] ) Homework Equations I Know k =2pi/lamda for 1D wave I know K vetor=k dot r I know K vector shows the direction of propogation, and must be perpendicular to E and B. The Attempt at a...