If the carrier and modulating signal frequencies are 1 MHz and 10 kHz respectively, what is the required bandwidth for an amplitude-modulated signal?

If the carrier and modulating signal frequencies are 1 MHz and 10 kHz respectively, what is the required bandwidth for an amplitude-modulated signal?

a) 5 kHz
b) 10 kHz
c) 20 kHz
d) 2 MHz

From the BCS Technical Cadre (ICT) October 2025 – 49th BCS Written (Special) (BPSC) exam, question 48 of 106.

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