(25 points) A 10 GHz plane wave propagating in free space is given by Einc = ˆy10e −j(120.234x−171.620z) [V/m]. This wave is incident on a dielectric half space that begins at z = 0. If the relative permittivity of the dielectric half space is ϵr = 12, answer the following questions. (a) (5 points) What is the angle of incidence of this wave (measured relative to the z-axis)? (b) (5 points) What will the angle of transmission be? (c) (5 points) Find an expression for the incident magnetic field. (d) (5 points) Find an instantaneous expression for the reflected electric field. (e) (5 points) Find an expression for the transmitted electric field.