A plane wave in air with

is incident upon the planar surface of a dielectric material, with &, = 4, occupying the half space z ≤ 0.

Determine

1. The polarization of the incident wave

2. The angle of incidence

3. The time-domain expressions for the reflected electric and magnetic fields

4. The time-domain expression for the transmitted electric and magnetic fields

5. The average power density carried by the wave in the dielectric medium.