A plane wave makes an oblique incidence at an angle 0, = 30 at a dielectric- dielectric boundary, as shown below: Medium 1, Medium 2, E = 4, H. = 1 E, = 16, H, = 1 y Z Figure 2 The incident wave has perpendicular and parallel components: E.(x, y, 2 ) = Bu + Ex Given that these components are of the form below and that both media are lossless: Eil = EoLy exp(_+ + y+ Egl = Eoja exp(_It y + Z a Fill in the blanks above. 7 b What is a (the unit vector denoting the direction/polarization of En ) in terms of 0