question_answer 19)

    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 6 kHz (c) The bandwidth required for amplitude modulation is 3 MHz (d) The side band frequencies are 1503 kHz and 1497 kHz

Answer:

                       (b,d)  Side band frequencies = 1497 kHz and 1503 kHz Band width