Home
Class 12
PHYSICS
Define frequency modulation....

Define frequency modulation.

Text Solution

Verified by Experts

In frequency modulation, the frequency of the carrier wave changes according to the instantaneous value of modulating signal.
Advantages of frequency modulation.
(i) Efficiency of FM transmission of high.
( ii) FM transmission is less susceptible is noise.
(iii) FM transmission can be used for stereo sound transmission.
Promotional Banner

Topper's Solved these Questions

  • PRINCIPLES OF COMMUNICATION

    BETTER CHOICE PUBLICATION|Exercise NUMERICAL PROBLEMS|9 Videos

  • PRINCIPLES OF COMMUNICATION

    BETTER CHOICE PUBLICATION|Exercise NUMERICAL PROBLEMS|9 Videos

  • POLARISATION OF LIGHT

    BETTER CHOICE PUBLICATION|Exercise Most Expected Questions|4 Videos

  • RADIOACTIVITY

    BETTER CHOICE PUBLICATION|Exercise MOST EXPECTED QUESTIONS |6 Videos

Similar Questions

Explore conceptually related problems

What are advantages and disadvantages of frequecny modulation over amplitude modulation?

Define amplitude modulation.

Define modulation.What is its need ?

600 Hz modulating voltage fed into FM generator produces a frequency deviation of 3.36 KHz. Find the modulation index.

BETTER CHOICE PUBLICATION-PRINCIPLES OF COMMUNICATION -SHORT ANSWER TYPE QUESTIONS
  1. Give one difference between point to point mode of communication and b...

    Text Solution

    |

  2. Why is ground wave propagation not suitable for high frequency ?

    Text Solution

    |

  3. Explain the term ground waves propagation of radio-waves.

    Text Solution

    |

  4. Explain why sky wave propagation is not possible for high frequency ra...

    Text Solution

    |

  5. What is space wave propagation ? Give one example of communication sys...

    Text Solution

    |

  6. Write any two factors, which justify the need of modulation for the tr...

    Text Solution

    |

  7. Explain space wave propagation.

    Text Solution

    |

  8. What do you mean by medium wave band and short wave band ?

    Text Solution

    |

  9. Define frequency modulation.

    Text Solution

    |

  10. What do you mean by medium wave band and short wave band ?

    Text Solution

    |

  11. What is remote sensing? WHat are the uses of remote sensing satellites...

    Text Solution

    |

  12. Compare amplitude modulation and frequency modulation.

    Text Solution

    |

  13. Write any four advantages of optical fibre communication.

    Text Solution

    |

  14. What is modem?

    Text Solution

    |

  15. Draw a labelled block diagram of a basic communication system.

    Text Solution

    |

  16. Explain the concept of amplitude modulation by drawing suitable wave...

    Text Solution

    |

  17. What is the need for modulation ?

    Text Solution

    |

  18. Explain space wave propagation of radio waves.

    Text Solution

    |

  19. Explain sky wave propagation of radiowaves.

    Text Solution

    |

  20. Explain the term ground waves propagation of radio-waves.

    Text Solution

    |