In Amplitude Modulation, the message signal V_m (t)=10 sin (2 π × 10^5 t) volts and Carrier signal V_c(t)=20 sin (2 π × 10^7 t) volts The modulated…

In Amplitude Modulation, the message signal $$\mathrm{V}_{\mathrm{m}}(t)=10 \sin \left(2 \pi \times 10^5 t\right) \text { volts and } $$ Carrier signal $$V_c(t)=20 \sin \left(2 \pi \times 10^7 t\right) \text { volts } $$ The modulated signal now contains the message signal with lower side band and upper side band frequency, therefore the bandwidth of modulated signal is $\displaystyle \alpha \mathrm{kHz}$. The value of $\displaystyle \alpha$ is :