Home
Class 12
PHYSICS
The difference between phase and frequen...

The difference between phase and frequency modulation

A

practically they are same but theoretically they differ

B

lies in the power audio response of phase modulation

C

lies in the poorer audio response of frequency modulation

D

lies in the definitions of modulation and their modulation index

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-I(C.W)|16 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(C.W)|34 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(H.W)|25 Videos

  • CAPACITANCE

    NARAYNA|Exercise Previous IIT-JEE|16 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 6|43 Videos

Similar Questions

Explore conceptually related problems

What is frequency modulation ?

What is frequency modulation ?

Knowledge Check

  • In frequency modulation

    A
    The amplitude of modulated wave varies as frequency of carrier waves
    B
    The frequency of modulated wave varies as amplitude of modulating wave
    C
    The amplitude of modulated wave varies as amplitude of carrier wave
    D
    The frequency of modulated wave varies as frequency of carrier wave

  • In frequency modulated wave

    A
    frequency varies with time
    B
    both frequency and amplitude vary with time
    C
    amplitude varies with time
    D
    both frequency and amplitude are constant

  • A modulating wave of frequency 100 MHz and amplitude 100V is superimposed on a carrier wave of frequency 300 GHz and amplitude 400V . The value of modulating index and difference between the maximum frequency and minimum frequency of modulated wave are respectively :

    A
    `0.25, 1xx10^(8)Hz`
    B
    `4.2xx10^(8)Hz`
    C
    `4.1xx10^(8)Hz`
    D
    `0.25xx10^(8)Hz`

    • Similar Questions

    Explore conceptually related problems

    Give the difference between normal frequency and cumulative frequency.

    What is the difference between the frequency of AC and DC?

    Find the phase difference between voltage and current.

    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:

    The phase difference between the voltage and the current in an AC circuit is pi//4 . If the frequency is 50Hz then this phase difference will be equivalent to a time of

    Home
    Profile