fremi cam. speed of liaht cm$.$

PHY$105$F$,$ Prol. Rayko Stantchev.

$[1$ mark$]$

Q$4.$

$($a$)$ A router used for wireless internet access follows the $802\mathrm{.}11g$ standard, router?

$($i$)$ What is the wavelength of the electromagnetic waves emitted by the router