Home
Class 12
PHYSICS
In amplitude modulation, carrier wave fr...

In amplitude modulation, carrier wave frequencies are:

A

lower

B

higher

C

same

D

lower sometimes and higher sometimes

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise EXERCISE-I (Space Communication)|28 Videos

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise EXERCISE-I (Line Communication )|12 Videos

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise EXERCISE-I (Antenna)|7 Videos

  • COMMUNICATION SYSTEM

    AAKASH SERIES|Exercise LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - IV) (Straight Objective & More than one Correct Answer Type Questions)|20 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|27 Videos

Similar Questions

Explore conceptually related problems

A single of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 2 MHz. The frequencies of the resultant signal is/are :-

A message single of frequency 100 MHz and peak voltage 100 V is used to execute amplitude modulation on a carrier wave of frequency 300 GHz and peak voltage 400 V. The modulation index and difference between the two side band frequencies are:

A message signal of frequency 100 MHz and peak voltage 100 V is used to execute amplitude modulation on a carrier wave of frequency 300 GHz and peak voltage 400 V.The modulation index and difference between the two side band frequencies are :

In amplitude modulation, sinusoidal carrier frequency used is denoted by omega_(c) and the signal frequency is denoted by omega_(m) . The bandwidth (Deltaomega_(m)) of the signal is such that Deltaomega_(m)ltltomega_(c) . Which of the following frequency is not contained in the modulated wave.

An audio signal of amplitude 0.1 V is used is used in amplitude modulation of a carrier wave of amplitude 0.2 V. Calculate the modulation index.

In amplitude modulation carrier wave is C=4 sin 2000t and message wave M=2 sin 200t , Find out modulation index.

STATEMENT-1: In amplitude modulation, the frequency of amplitude variation is much smaller than the frequency of modulated wave STATEMENT-2 : Frequency of the signal is much smaller than the frequency of the carrier wave

A: The bandwidth of a modulated signal is 2f_(m) in amplitude modulation, where f_(m) is the frequency of the modulating signal. R: In case of amplitude modulation the frequency of a modulated signal is equal to the frequency of the carrier wave.

An audio signal of 0.1 V is used in amplitude modulation of a career wave of amplitude 0.3 V. The modulation index is

In an amplitude modulator circuit, the carrier wave is given by, C(t) =4 sin (20000 pi t) while modulating signal is given by, m(t) =2 sin (2000 pi t) . The values of modulation index and lower side band frequency are :