JEE Main 2021PhysicsCommunication SystemEasyNumerical

JEE Main 2021 — Communication System Question with Solution

JEE Main 2021 (31 Aug Shift 2)

Question

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 __________.

Enter your answer

Show full solutionCorrect answer: 500
Correct answer
500

Step-by-step explanation

Band width =2×n× highest modulating frequency.
6MHz=2×n×6KHz
⇒ n=6×1062×6×103=500

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Communication System chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2021, covering the Communication System chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.