Home
Class 12
PHYSICS
Degree of modulation-...

Degree of modulation-

A

can take any value

B

should be less than 100%

C

should exceed 100%

D

none of the these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

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

  • COMMUNICATION SYSTEM

    AAKASH SERIES|Exercise LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - II) (Straight Objective & More than one Correct Answer Type Questions)|19 Videos

  • CAPACITORS

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (Integer Type Questions)|2 Videos

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise PRACTICE EXERCISE (TV Antenna)|16 Videos

Similar Questions

Explore conceptually related problems

The modulating wave is given by V_(m)=6sin omegat and the carrier wave is given by V_(c)=12 sin omegat . The percentage of modulation is

Write three important factors which justify the need of modulating a message signal. Show diagrammatically how an amplitude modulated wave is obtained when a modulating signal is superimposed on a carrier wave.

During the process of modulation the RF wave is called

The amplitude of the modulating wave is 2//5 th of the amplitude of the carrier wave. The percentage modulation

The concepts of communication are (a) mode of communication (b) need for modulation (c ) types of modulation (d) detection of modulated wave

An amplitude modulated wave is as given in figure. Calculate the percentage modulation,

In a communication system, what is meant by modulation? State any two types of modulation.

The maximum value of modulation index in case of amplitude modulation system is

The types of modulation which are possible are-

The maximum amplitude of the modulated wave is 16 v and minimum amplitude is 4 V. The percentage modulation is

AAKASH SERIES-COMMUNICATION SYSTEM -LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - III) (Straight Objective & More than one Correct Answer Type Questions)
  1. In AM wave, carrier power is given by-

    Text Solution

    |

  2. In AM wave total power of side bands is given by :

    Text Solution

    |

  3. Fraction of total power carried by side bands is given by-

    Text Solution

    |

  4. Modulation factor determines-

    Text Solution

    |

  5. if the maximum and minimum voltage of AM wave are V(max) and V(min), r...

    Text Solution

    |

  6. When m=1 ,power carried by side bands is:

    Text Solution

    |

  7. Which of the following is/are the limitations of amplitude modulation?

    Text Solution

    |

  8. Degree of modulation-

    Text Solution

    |

  9. A signal wave of frequency 12KHz is modulated with a carrier wave of f...

    Text Solution

    |

  10. The antenna current of an AM transmitter is 8A when only the carrier i...

    Text Solution

    |

  11. A 1kW signal is transmitted using a communication channel which provid...

    Text Solution

    |

  12. A speech signal of 3 KHz is used to modulate a carrier signal of frequ...

    Text Solution

    |

  13. A message signal of frequency omega(m) is superposed on a carrier wave...

    Text Solution

    |

  14. 1-V characteristics of four devices are shown in figure. Identif...

    Text Solution

    |

  15. A male voice after modulation transmission sounds like that of a femal...

    Text Solution

    |

  16. Identify the mathematical expression for amplitude modulated wave.

    Text Solution

    |

  17. Audio sine waves of 3 kHz frequency are used to amplitude modulate a c...

    Text Solution

    |

  18. The frequency response curve (figure) for the filter circuit used for ...

    Text Solution

    |

  19. In amplitude modulation, the modulation index m, is kept less than or ...

    Text Solution

    |

  20. An amplitude modulated wave is as shown in Fig. Which of the foll...

    Text Solution

    |