At a certain instant in time, the electric field of an electromagnetic wave in free space points in the -z direction, and the magnetic field points in the +y direction. In what direction is this wave traveling?
A) +x direction
B) -x direction
C) +y direction
D) -z direction
E) +z direction
Question 2
Which one of the following is an accurate statement about light?
A) When light strikes a surface at the critical angle, all the light passes through the surface.
B) When light strikes a surface at the critical angle, only the reflected light is 100 polarized.
C) When light strikes a surface at Brewster's angle, it is completely reflected at the surface.
D) When light strikes a surface at Brewster's angle, only the reflected light is 100 polarized.
E) When light strikes a surface at Brewster's angle, the reflected and transmitted light are both 100 polarized.
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