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Question

A message signal of frequency ω0 is superposed on a carrier wave of frequency ωe to get an amplitude mediated wave (AM).The frequency of the AM wave will be

A
ωm
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B
ωe
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C
ωe+ωm2
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D
ωeωm2
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Solution

The correct option is A ωe
In amplitude modulation the amplitude of the carrier wave varies according to the amplitude of the audio frequency modulating signal while the frequency of amplitude modulated wave remains same as that of the carrier wave (ωe).

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