Q 12-08-145JEE MainJEE Main 2022 (27 Jul, Shift 2)Easy
A square wave of the modulating signal is shown in the figure. The carrier wave is given by $C(t) = 5\sin(8\pi t)$ Volt. The modulation index is
Answer: (A) $0.2$
The modulating signal has amplitude $A_m = 1$ V and the carrier has amplitude $A_c = 5$ V.
$$\mu = \frac{A_m}{A_c} = \frac15 = 0.2$$
Solution by Sreeraj P, M.Sc Physics