Problem 1 A plane wave in air with E = ŷ20e−j(3x+4z) (V/m) Is incident upon the planar surface of a dielectric material, with ε₁ = 4, occupying the half-space z≥0. Determine: a) The polarization of the incident wave. b) The angle of incidence The time-domain expression for the reflected electric field. d) The time-domain expression for the reflected magnetic field. The time-domain expression for the transmitted electric field. e) f) The time-domain expression for the transmitted magnetic field. g) The average power density carried by the wave in the dielectric medium.