PHYSICS · Single correct · A Level · Physics · Electronics · Electronics
Problem
In amplitude modulation, the sinusoidal carrier frequency is denoted by ωc and the signal frequency is denoted by ωm. The bandwidth Δωm of the signal is such that Δωm<ωc. Which of the following frequencies is not contained in the modulated wave?
(1) ωm+ωc
(2) ωc−ωm
(3) ωm
(4) ωc