A signal having frequency 1KHz is used modulate the carrier signal with freequency 1MHz and amplitude twice of the signal. The modulated signal will be
a.Over modulated
b.Under modulated
c.Perfectly modulated
d.None
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When a carrier is modulated in any way, further signals are created either side of the steady carrier. ... Therefore when a tone of 1 kHz is mixed with a carrier of 1 MHz, a "sum" frequency is produced at 1 MHz + 1 kHz, and a difference frequency is produced at 1 MHz - 1 kHz, i.e. 1 kHz above and below the carrier.
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