1.

A speech signal of `3 kHz` is used to modulate a carrier signal of frequency `1 MHz`, using amplitude modulation. The frequencies of the side bands will beA. `1.003 MHz` and `0.997 MHz`B. `3001 kHz` and `2997 kHz`C. `1003 kHz` and `1000 kHz`D. `1 MHz` and `0.997 MHz`

Answer» Correct Answer - A
the frequencies of side bands are
`LSB=f_(c)-f_(m)` (Lower side Band)
`USB=f_(c)+f_(m)` (Upper side Band)


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