Electricity and Magnetism Please show your work Problem conc

Electricity and Magnetism

Please show your work

Problem (conceptual The electric field for a plane wave traveling through a medium is given by Which of the following statements regarding the vector kis true? A) It is direction of the electric field vector. B) It is the direction of the magnetic field vector C) It is the direction in which the wave is not varying. D) It is the direction the plane wave moves E) It is the polarization vector. Atta-Fynn PHYS 4324 Advanced E & M UT Arlington

Solution

THe answer is D ) is the direction in which the plane wave moves.

wave vector is the normal drawn to the surface of a plane wave which represent the direction of travell of the plane wave.