Which of the following technique is used to trnsmit audio signals in television broadcasts ........

Environment and Ecology NCERT

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Which of the following technique is used to trnsmit audio signals in television broadcasts?

amplitude modulation

frequency modulation

pulse code modulation

none of the above

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Explanation:

frequency modulation is a process in which the frequency of the carrier is varied in ccordance with the instantaneous value of modulating voltage . it conveys information over a carrier wave by varying its instantaneous frequency . it is commonly used for radio and television broadcasting.