Home
Class 12
PHYSICS
A message signal of frequecy 10 kHz and ...

A message signal of frequecy 10 kHz and peak voltage 10V is used to modulate a carrier wave of frequency 1 MHz and peak voltage 20V. Determine :
(i) The modulation index,
(ii) The side bands produced .

Text Solution

Verified by Experts

(a) Modulation index = ` 10//20= 0.5`
(b) The side bands are at (1000 + 10 kHz) = 1010 kHz ` and (1000-10kHz)= 990 kHz.
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

    OSWAAL PUBLICATION|Exercise TOPIC-3 INTERNET, MOBILE AND GPS (SHORT ANSWER TYPE QUESTIONS -I)|2 Videos

  • COMMUNICATION SYSTEM

    OSWAAL PUBLICATION|Exercise TOPIC-2 MODULATION ( LONG ANSWER TYPE QUESTIONS )|1 Videos

  • ATOMS

    OSWAAL PUBLICATION|Exercise NUMERICAL PROBLEMS|11 Videos

  • CURRENT ELECTRICITY

    OSWAAL PUBLICATION|Exercise TOPIC-3 (POTENTIOMETER & APPLICATIONS) (NUMERICAL PROBLEMS)|2 Videos

Similar Questions

Explore conceptually related problems

A message signal of frequency 10 kHz and peak voltage 5V is used to modulate a carrier of frequency 100 kHz and peak voltage of 20 V. Determine Modulation index.

A message signal of frequency 10 kHz and peak voltage 5V is used to modulate a carrier of frequency 100 kHz and peak voltage of 20 V. Determine The side bands.

A carrier wave of frequency 1.5 MHz and amplitude 50 V is modulated by a sinusoidal wave of frequency 10 kHZ producing 50% modulation . Calculate the amplitude of AM wave and frequencies of the side bands produced .

An FM signal has a resting frequency of 105 MHz and highest frequency of 105.03 MHz when modulation by a signal of frequency 5kHz. Determine (i) frequency deviation and (ii) carrier swing.

A carrier wave of peak voltage 12 V is used to transmit a message signal. What should be the peak voltage of the modulating signal in order to have a modulation index of 75% ?

A modulation signal is a square wave of 1 V. The carrier wave is given by C(t) = 2 sin(8pit) V . The modulation index will be