10. Using ~ S =(1 /µ0 ) ~ E × ~ B , we see that (on the right hand) letting the thumb be in the ~ E direction and the index fnger be in the ~ B direction means that the middle fnger (held perpendicular to the other two, making a “triad” oF the thumb and two fngers) points in the direction oF wave propagation (the direction
This is the end of the preview. Sign up
access the rest of the document.