Q15.4Multiple choice
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 be
- (a)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.