In TV broadcasting the picture and Sound are transmitted simultaneously. In this :

aduio signal is amplitude modulated

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audio singal is frequency modulated

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video signal is amplitude modulated

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video signal is frequency modulated

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Solution

The correct options are
B audio singal is frequency modulated
C video signal is amplitude modulated
TV broadcasting uses frequency modulation for the audio part and amplitude modulation for the video part as different modulations provide different advantages.

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