For transmitting audio signal properly

The audio signal

The audio signal

The audio signal

The band width required for transmiting video signal is

What is the principle used for transmitting audio and video signals using optical fibre? Explain the principle.

(A) : For transmitting a signal, the antenna should have a size comparable to wave length of the signal at least lamda//4 in dimension (R) : The antenna properly senses the time variation of the signal