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Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz. Which of the following statements are true? 

(a) The side band frequencies are 1506 kHz and 1494 kHz. 

(b) The bandwidth required for amplitude modulation is 6kHz. 

(c) The bandwidth required for amplitude modulation is 3 MHz. 

(d) The side band frequencies are 1503 kHz and 1497 kHz.

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(b), (d)

(b) The bandwidth required for amplitude modulation is 6kHz. 

(d) The side band frequencies are 1503 kHz and 1497 kHz.

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