Auniform plane wave o a uniform plane wave of frequency f is directed downward toward the surface of the earth o the earth. assume the surface of the earth is planar surface. the characteristics of soil are relative permitti relative permittivity er , relative permeability uy = 1 and conductivity o. (the approximations that are used for conductors are not accurate for this problem! ) a. determine the loss tangent 4 points b. determine the penetration depth 4 points c. determine the percentage of power reflected from the soil 4 points d. determine the percentage of power and transmitted into the soil. 4 points e. if electric field intensity of the incoming wave is 1 v/m, determine the electric field intensity of the wave 10 m below the surface. 4 points problem 2 f = 1 ghz er = 2.8 o= 0.009 s/m