Question

what is the longest wavelength of audio signal to be transmitted in communication system? why can't we transmit these signal directly at long distance? give any two reason? what is done to transmit them to long distance

Answer 1

wave motion is a type of motion in which energy is transferred from one region to another without the actual movement of molecules of the medium from one region to other
some other example of transverse wave
1) electromagnetic waves
2) movement of string sitar