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Why do we use FM for sound and AM for video in TV
transmisssion?
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Answer Posted / ashish
in FM the amplitude ramains constant.it is a property of the
noise disturbance that it affects the amplitude of the
signal.so at the recieving end if we found the amplitude
variation in FM wave then it will be due to the noise hence
it can be eliminated by using the appropriate filter without
the loss of information.hence FM is used for sound signals.
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