Please help to solve the EM related problem

Please help to solve the EM related problem


1. (a)A 2-GHz plane wave originating in lossless dielectric medium 1 (g = 16g, ), which occupies the half-space region of z < 0,="" is="" incident="" normally="" on="" a="" plane="" interface="" with="" a="" lossless="" dielectric="" medium="" 2="" (&,="25g," ),="" which="" occupies="" the="" half-space="" region="" of="" z=""> 0. Find the locations of the first minimum (Zum) and the first maximum (Zuma) of the total electric field in medium 1. (b) A 2-GHz plane wave originating in lossless dielectric medium 1 (g =16¢,), which occupies the half-space region of z <0, is="" incident="" normally="" on="" a="" plane="" interface="" with="" a="" lossy="" dielectric="" medium="" 2="" (&,="2g," +="" j25,),="" which="" occupies="" the="" half-space="" region="" of="" z=""> 0. Find the locations of the first minimum (Zui) and the first maximum (Zmay) of the total electric field in medium 1.