Problem 1 Consider a plane wave propagating in a lossy dielectric medium for z <0, with a perfectly conducting plate at z=0. Assume that the lossy medium is characterized by ε=(5-j2) =μo, and that the frequency of the plane wave is 1.0GHz, and let the amplitude of the incident electric field be 4 V/m at z=0 Find the reflected electric field for z<0, and plot in Excel the magnitude of the total electric field for -0.5≤z≤0.