Home
Class 11
PHYSICS
In frequency modulation...

In frequency modulation

A

The amplitude of career wave varier according to the frequency of message signal

B

The frequency of career wave varies according to the amplitude of message signal

C

The frequency of career wave varies according to the frequency of message signal

D

The amplitude of career wave varies according to the amplitude of message signal

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-2)|49 Videos

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-3)|27 Videos

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-4)|51 Videos

  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN|Exercise EXERCISE-IV|8 Videos

  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-05)[B]|42 Videos

Similar Questions

Explore conceptually related problems

Define frequency modulation and state any one advantage of frequency modulation (FM) over amplitude modulation (AM).

Both amplitude modulation (AM) and frequency modulation (FM) are used for radio broadcasting. The amplitude of the high frequency carrier wave is varied or modulated in accordance with the variations in the amplitude of the audio signals that are to be transmitted, in te process of amplitude modulation in frequency modulation te amplitude of the carrier remains constant but its frequency is varied inn accordance withh the audio signal. Reception with AM signals is in general is affected by interference of various kinds ad elaborated equipment is required for FM broadcast. In india the radio signals are boarcast using-

Both amplitude modulation (AM) and frequency modulation (FM) are used for radio broadcasting. The amplitude of the high frequency carrier wave is varied or modulated in accordance with the variations in the amplitude of the audio signals that are to be transmitted, in te process of amplitude modulation in frequency modulation te amplitude of the carrier remains constant but its frequency is varied inn accordance withh the audio signal. Reception with AM signals is in general is affected by interference of various kinds ad elaborated equipment is required for FM broadcast. The rangeof a transmitter is

The difference between phase and frequency modulation

Write two advantages of frequency modulation over amplitude modulation.

If f_(0) and f_(f) represent the carrier wave frequencies for amplitude and frequency modulations respectively, then

(A) : In case of frequency modulation, the frequency of the RF carrier is changed by the AF signal and the change is proportional to the amplitude of the AF signal at any instant. (R) : When the AF signal is positive, the carrier frequency increases but it decreases when the AF signal is negative.

An audio signal of 2.8 kHz modulates a carrier of frequency 84 MHz and produces a frequency of deviation of 56kHz. Calculate(i) Frequency modulation index(ii) Frequency range of FM wave.

Match the following {:("(a) Amplitude","(e) Amplitude and angular frequency remains constant"),("(b) Frequency modulation ","(f) Digital transmission"),("(c) Phase modulation","(g) noise creeps in"),("(d) Pulse code modulation","(h) Stereophonic transmission"):}

What should be the transmission bandwidth of an FM signal with 75kHz deviation and highest frequency of modulation 15kHz?

ALLEN-SEMICONDUCTORS-Part-3(Exercise-1)
  1. Long distance short-wave radio broadcasting uses

    Text Solution

    |

  2. The power in a two-wire transmission line travels :- A. Inside the co...

    Text Solution

    |

  3. For television broadcasting the frequency employed is normally

    Text Solution

    |

  4. The sound waves after being converted into electrical waves are not tr...

    Text Solution

    |

  5. The process of superimposing signal frequency (i.e., audio wave) on th...

    Text Solution

    |

  6. In an amplitude modulated wave for audio frequency of 500 cycles/secon...

    Text Solution

    |

  7. If there were no atmosphere, the average temperature on the surface of...

    Text Solution

    |

  8. The T.V. transmission tower in Delhi has a height of 240m. The distanc...

    Text Solution

    |

  9. Which of the following is used to produce radio waves of constant ampl...

    Text Solution

    |

  10. The maximum distance upto which TV transmission from a TV tower of hei...

    Text Solution

    |

  11. For sky wave propagation of a 10MHz signal, what should be the minimum...

    Text Solution

    |

  12. In short wave communication, waves of which of the following frequenc...

    Text Solution

    |

  13. For sky wave propagation of a 10MHz signal, what should be the minimum...

    Text Solution

    |

  14. In frequency modulation

    Text Solution

    |

  15. Range of frequencies alotted for commerical FM radio broad cast is

    Text Solution

    |

  16. Sound produced by a tining fork is a sort of :-

    Text Solution

    |

  17. The space waves which are affected seriously by atmospheric condition ...

    Text Solution

    |

  18. Which of the following is not a transducer?

    Text Solution

    |

  19. A anetenna is of height 500 m. What will be its range (Radio of the ea...

    Text Solution

    |

  20. In amplitude modulation determine the total maximum transmitted power,...

    Text Solution

    |