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JEE Main 201815 AprilMorning ShiftOnline
Exam
JEE Main
Year
2018
Date
15 April
Shift
Morning Shift
Mode
Online
Subject
Physics
Chapter
Communication System

JEE Main 2018 · 15 April · Morning Shift · Online · Physics · Communication System

The number of amplitude modulated broadcast stations that can be...

The number of amplitude modulated broadcast stations that can be accommodated in a 300kHz300 \mathrm{kHz} band width for the highest modulating frequency 15kHz15 \mathrm{kHz} will be:

Options

  1. A20
  2. B10
  3. C8
  4. D15

Correct answer

B. 10

Step-by-step solution

Given, modulating frequency fm=15KHz∴f_m=15 \mathrm{KHz}\therefore \quad Bandwidth of one channel =2fm=30kHz∴=2 f_m=30 \mathrm{kHz}\therefore \quad No of channels accommodate =300kHz30kHz=\frac{300 \mathrm{kHz}}{30 \mathrm{kHz}}=10
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