Sagot :
Answer:
Electromagnetic waves are used to transmit long/short/FM wavelength radio waves, and TV/telephone/wireless signals or energies. They are also responsible for transmitting energy in the form of microwaves, infrared radiation (IR), visible light (VIS), ultraviolet light (UV), X-rays, and gamma rays.
Answer:
The electromagnetic waves were empirically used, even before the development of Maxwell's equations, as carriers of telegraph and telephone signals, propagating along wires and cables. ... Nowadays submarine optical fibres, downloaded at the sea-bottom, are also used for signal transmission.