A plane 200 MHz wave is travelling in a medium for which = 0, r = 2 and r = 4. If the average

A plane 200 MHz wave is travelling in a medium for which σ = 0, μr = 2 and Єr = 4. If the average pointing vector is 5 W/m2. Find i) rms E , ii) rms H iii) phase velocity iv) impedance of the medium