Answer:
The different modes of propagation of e. m. waves are: (i) Ground wave propagation (ii) Space wave propagation (Hi) Sky wave propagation Sky wave propagation is used for the transmission of e. m. waves having frequency range from a few MHz to\[\text{4}0\text{ MHz}\]. As shown in the figure, here a radiowave is directed towards the sky and is reflected by the ionosphere towards the desired location of the earth.
You need to login to perform this action.
You will be redirected in
3 sec