A plane wave defined by $"=15!"$#$.\%$& $)($V$/$m$)$ is propagating inside a medium with a relative

permeability of r $=2\mathrm{.}4.$ The phase velocity is measured to be $1\mathrm{.}75$ x $1010$ cm$/$s$.$

$($a$)$ Find the direction of wave propagation

$($b$)$ Calculate the relative permittivity of the medium

$($c$)$ Find out the wavelength and frequency of the wave

$($d$)$ Calculate the wave impedance. Is this value different than wave impedance of free space

medium, why?

$($e$)$ Write down an expression for time$-$dependent magnetic field $""(,)$