Home
Class 12
PHYSICS
The sound waves after being converted in...

The sound waves after being converted into electrical waves are not transmitted as such because-

A

they travel with the speed of sound

B

the frequency is not constant

C

they are heavily absorbed by the atmosphere

D

the height of antenna has to be increased several times

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    RESONANCE|Exercise Exercise 3|13 Videos

  • COMMUNICATION SYSTEMS

    RESONANCE|Exercise Exercise 1|40 Videos

  • CAPACITANCE

    RESONANCE|Exercise High Level Problems|16 Videos

  • CURRENT ELECTRICITY

    RESONANCE|Exercise High Level Problems (HIP)|21 Videos

Similar Questions

Explore conceptually related problems

Sound waves are

Sound waves are transverse waves.

Sound waves are not electromanetic waves as

Speed of sound waves in air

RESONANCE-COMMUNICATION SYSTEMS-Exercise 2
  1. In which frequency range, space waves are normally propagated?

    Text Solution

    |

  2. For television broadcasting, the frequency employed is normally

    Text Solution

    |

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

    Text Solution

    |

  4. The process of superimposing signal frequency (i.e. audio wave) on the...

    Text Solution

    |

  5. The T.V. transmission tower in Delhi has a height of 240 m. The distan...

    Text Solution

    |

  6. Range of frequencies allotted for commercial FM radio broadcast is

    Text Solution

    |

  7. Intelset satellite works as a -

    Text Solution

    |

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

    Text Solution

    |

  9. A T.V. tower has a height 150m. What is the population density around ...

    Text Solution

    |

  10. Which of the following is not transducer?

    Text Solution

    |

  11. Long distance short-wave radio broadcasting uses

    Text Solution

    |

  12. The carrier frequency generated by a tank circuit containing 1 nF capa...

    Text Solution

    |

  13. the attenution in optical fibre is mainly due to

    Text Solution

    |

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

    Text Solution

    |

  15. Amplitude modulation is used for broad casting because

    Text Solution

    |

  16. Range of frequencies allotted for commercial FM radio broadcast is

    Text Solution

    |

  17. A sept index fibre has a relavitive refractive index of 0.88%. What is...

    Text Solution

    |

  18. In which frequency range, space waves are normally propagated?

    Text Solution

    |

  19. If mu and mu(2) are the refractive indices of the materials of core an...

    Text Solution

    |

  20. Through which mode of propagation, the radio waves can be sent from on...

    Text Solution

    |