Q 12-08-147JEE MainJEE Main 2022 (28 Jul, Shift 1)Easy
In the case of amplitude modulation to avoid distortion the modulation index $\mu$ should be :
Answer: (A) $\mu \le 1$
If $\mu = \dfrac{A_m}{A_c} > 1$ the carrier is over-modulated and the envelope no longer follows the signal. To avoid distortion, $\mu \le 1$.
Solution by Sreeraj P, M.Sc Physics