Q 12-08-154JEE MainJEE Main 2021 (31 Aug, Shift 2)Easy
A bandwidth of $6$ MHz is available for A.M. transmission. If the maximum audio signal frequency used for modulating the carrier wave is not to exceed $6$ kHz, the number of stations that can be broadcasted within this band simultaneously without interfering with each other will be ______.
Numerical value type. Enter your answer.
Answer: 500
Each AM station needs a bandwidth of $2f_m = 12$ kHz.
$$N = \frac{6\ \text{MHz}}{12\ \text{kHz}} = 500$$
Solution by Sreeraj P, M.Sc Physics