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The technique used to transmit audio signals in television broadcasts is :

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The technique used to transmit audio signals in television broadcasts is :

(a) Amplitude Modulation

(b) Frequency Modulation

(c) Pulse Code Modulation

(d) Time Division Multiplexing
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(b) Frequency modulation : It is a process in which the frequency of the carrier is varied in accordance with the instantaneous value of modulating voltage. In telecommunications and signal processing, frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. FM is most commonly used for radio and television broadcasting.

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