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JEE Main 202126 FebruaryEvening Shift

Exam: JEE Main
Year: 2021
Date: 26 February
Shift: Evening Shift
Subject: Physics
Chapter: Communication System

JEE Main 2021 · 26 February · Evening Shift · Physics · Communication System

If the highest frequency modulating a carrier is 5kHz , then the...

If the highest frequency modulating a carrier is

5kHz

, then the number of

AM

broadcast stations accommodated in a

90kHz

bandwidth are

Correct answer

9

Step-by-step solution

B. W. (Bandwidth) $= 2 \times$ maximum frequency at modulating signal

$= 2 \times 5kHz$

$= 10kHz$

$∴$ No of stations accommodate $= \dfrac{90}{10} = 9$

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