Q 12-08-137JEE MainJEE Main 2022 (26 Jul, Shift 2)Easy
The maximum and minimum voltages of an amplitude modulated signal are $60\ \text{V}$ and $20\ \text{V}$ respectively. The percentage modulation index will be
Answer: (B) $50\%$
$$\mu = \frac{60 - 20}{60 + 20} = 0.5 = 50\%$$
Solution by Sreeraj P, M.Sc Physics