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Amplitude modulated wave is represented by VAM = 10[1 + 0.4 cos(2π x 104t)] cos(2π x 107 t).The total bandwidth of the amplitude modulated wave is :(A) 10 kHz(B) 20 MHz(C) 20 kHz(D) 10 MHz |
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Answer» Correct option is (C) 20 kHz Bandwidth = 2 fm = 2 x 104 Hz = 20 x 103 Hz = 20 KHz |
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