What are sky waves?Explain their propagation breifly.

Sky Wave Propagation

Space Wave Propagation

Ground Wave Propagation

Distinguish between sky wave and space wave propagation. Give a brief description with the help of suitable diagrams indicating how these waves are propagated.

As a wave propagates

Sky wave propagation is used in

Distinguish between 'sky waves' and 'space waves' modes of propagation in communication system. (a) Why is sky wave mode propagation restricted to frequencies upto 40 MHz?

Transverse waves can propagate

Intensity of plane electromagnetic waves in the direction of propagation of wave

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are