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 sideband frequencies are 1506 kHz and 1494 kHz.B. The bandwidth required foe amplitude modulation is 6 kHz.C. The bandwidth required for amplitude modulation is 3 MHzD. The sideband frequencies are 1503 kHz and 1494 kHz

Audio sine waves of 3 kHz frequency are used to amplitude modulate a c

1.	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 sideband frequencies are 1506 kHz and 1494 kHz.B. The bandwidth required foe amplitude modulation is 6 kHz.C. The bandwidth required for amplitude modulation is 3 MHzD. The sideband frequencies are 1503 kHz and 1494 kHz
Answer» Correct Answer - B::D `LSB = (omega_c) = (omega_m)` `1.5xx 10^6 - 3xx 10^3` `= 1497 kHz` and `USB = (omega_c) +(omega_m)` `= 1503 kHz` Bandwidth required `= USB - LSB =2omega_m` `= 2xx3 kHz = 6 kHz`.

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