In amplitude modulation, sinusoidal carrier frequency used is denoted by ω_c and the signal frequency is denoted by ω_m. The bandwidth (Δ ω_m ) of…

In amplitude modulation, sinusoidal carrier frequency used is denoted by $\displaystyle \omega_c$ and the signal frequency is denoted by $\displaystyle \omega_{\mathrm{m}}$. The bandwidth $\displaystyle \left(\Delta \omega_{\mathrm{m}}\right)$ of the signal is such that $\displaystyle \Delta \omega_{\mathrm{m}} \ll \omega_{\mathrm{c}}$. Which of the following frequencies is not contained in the modulated wave ?