Home
Class 12
PHYSICS
Identify the mathematical expression for...

Identify the mathematical expression for amplitude modulated wave.

A

`A_(c)sin[{omega_(c)+K_(1)V_(m)(t)}+phi]`

B

`A_(c)sin{omega_(c)t+phi+K_(2)V_(m)(t)}`

C

`{A_(c)+K_(2)V_(m)(t)}sin{omega_(c)t+phi}`

D

`A_(c)V_(m)(t)sin(omega_(c)t+phi)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (Sky Wave propagation)|20 Videos
  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (Space Communication)|35 Videos
  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (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

In amplitude modulation

The frequency of amplitude modulated wave is equal to

Draw a plot of the variation of amplitude versus omega for an amplitude modulated wave. Define modulation index. State its importance for effective amplitude modulation.

Assertion: AM detection is the process of recovering the modulating signal from amplitude modulated waveform wich is carried out using a rectifier and an evelope detector. Reason: Amplitude modulated waves can be produced by application of the message signal and the carrier wave to a non-linear device followed by band pass filter.

What is amplitude modulation?

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.

Draw backs of Amplitude modulation

In amplitude modulation equation of mesenger wave A_(o)sinomega_(m)t and carrier wave A_(C)cosomega_(C)t the equation of amplitude modulated wave is

What is modulation? In the given block diagram of a receiver for detection of amplitude modulated wave write the name of part X.

If omega_c and omega_m are angular frequencies of carrier wave and modulating signal respectively, then Band width of amplitude modulated waves is equal to

AAKASH SERIES-COMMUNICATION SYSTEMS -Exercise - IA (Modulation)
  1. In amplitude modulation

    Text Solution

    |

  2. Assertion: The units of some physical quantities can be expressed as c...

    Text Solution

    |

  3. AM is used for broadcasting because

    Text Solution

    |

  4. In amplitude modulation

    Text Solution

    |

  5. The tuned circuit the Oscillator in a simple AM transmitter employs a ...

    Text Solution

    |

  6. In frequency modulation

    Text Solution

    |

  7. In a communication system, noise is most likely to affect the signal

    Text Solution

    |

  8. The difference between phase and frequency modulation

    Text Solution

    |

  9. While tuning in a certain broadcast station with a receiver, we are ac...

    Text Solution

    |

  10. Digital signals (i) do not provide a continuous set of values, (ii) re...

    Text Solution

    |

  11. An amino acid under certain conditions have both positive and negative...

    Text Solution

    |

  12. Assertion: AM detection is the process of recovering the modulating si...

    Text Solution

    |

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

    Text Solution

    |

  14. In amplitude modulation

    Text Solution

    |

  15. Modem is a device which performs

    Text Solution

    |

  16. Audio signal canot be transmitted because

    Text Solution

    |

  17. Of the following which is preferred modulation scheme for digital comm...

    Text Solution

    |

  18. A basic communication system consists of (A) transmitter (B) informa...

    Text Solution

    |

  19. Digital signals (i) do not provide a continuous set of values, (ii) re...

    Text Solution

    |

  20. Identify the mathematical expression for amplitude modulated wave.

    Text Solution

    |