Home
Class 12
PHYSICS
For transmitting audio signal properly...

For transmitting audio signal properly

A

it is first superimposed on high frequency carrier wave

B

it is first superimposed on low frequency carrier wave

C

it is sent directly without superimposing on any wave

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

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

    AAKASH SERIES|Exercise LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - III) (Straight Objective & More than one Correct Answer Type Questions)|26 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 audio signal

The audio signal

(A) : For transmitting a signal, the antenna should have a size comparable to wave length of the signal at least lamda//4 in dimension (R) : The antenna properly senses the time variation of the signal

Assertion : The information contained in our original low frequency baseband signal is to be translated into high or radio frequencies before transmission. Reason: For transmitting a signal, the antenna should have a size comparable to the wav elength of the signal.

An optical communication system, having an operating wavelength, lambda (in meters), can use only x% of its sourcefrequency as its channel band width.The system is to be used for transmitting TV signal requiring a band width of F hertz. How many channels can this system transmit simultaneously?

A carrier wave of peak voltage 14 V is used for transmitting a message signal. The peak voltage of modulating signal given to achieve a modulation index of 80% will be :

Show that the minimum length of antenna required to transmit a radio signal of frequency 10 MHz is 30m.

Find the minimum length of antenna used to transmit a radio signal of frequency of 30 MHz.

Show that the minimum length of antenna required to transmit a radio signal of frequency 10 MHz is 7.5m.

AAKASH SERIES-COMMUNICATION SYSTEM -LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - IV) (Straight Objective & More than one Correct Answer Type Questions)
  1. For transmitting audio signal properly

    Text Solution

    |

  2. The highest frequency of radiowaves which when sent at some angle towa...

    Text Solution

    |

  3. Speed of electromagnetic waves is the same

    Text Solution

    |

  4. In space communication, the information can be passed from one place t...

    Text Solution

    |

  5. Which one of the following is correct ?

    Text Solution

    |

  6. The space wave propagation is utilized in

    Text Solution

    |

  7. Three waves A,B and C of frequencies 1600 KHz, 5MHz and 60 MHz, respec...

    Text Solution

    |

  8. A transmitter transmits the message in original

    Text Solution

    |

  9. A receiver reconstructs the original message after propagation through...

    Text Solution

    |

  10. A 100m long antenna is mounted on a 500m tall building. The complex ca...

    Text Solution

    |

  11. A diode detector is used to detect an amplitude modulated wave of 60% ...

    Text Solution

    |

  12. The number of telephone conversations by a fibre of band width 40MHz, ...

    Text Solution

    |

  13. Which of the following devices is full duplex?

    Text Solution

    |

  14. Which of the following devices is half duplex ?

    Text Solution

    |

  15. Which of the following statement is wrong?

    Text Solution

    |

  16. Through which mode of propagation the radio waves can be sent from one...

    Text Solution

    |

  17. The maximum peak to peak voltage of an AM wire is 24 mV and the minimu...

    Text Solution

    |

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

    Text Solution

    |

  19. The radio waves of frequency 300 MHz to 3000 MHz belong to

    Text Solution

    |

  20. Match the column I with column II.

    Text Solution

    |

  21. Match the following elements of column I with their property given in ...

    Text Solution

    |