Home
Class 12
PHYSICS
A fax message is to be sent from Delhi t...

A fax message is to be sent from Delhi to washington via a geostationary satellite. Calculate the minimum time delay between
the dispatch and its getting received. Take
height of the geostationary satellite = 36000
km.

A

`72xx10^(3)km`

B

`12xx10^(3)km`

C

`27xx10^(3)km`

D

`18xx10^(3)km`

Text Solution

Verified by Experts

The correct Answer is:
A
Minimum distance
`s=2h=2xx36000=72000km `
Promotional Banner

Topper's Solved these Questions

  • COMMUNITCATION SYSTEMS

    NCERT FINGERTIPS|Exercise Modulation And Its Necessity|14 Videos

  • COMMUNITCATION SYSTEMS

    NCERT FINGERTIPS|Exercise Amplitude Modulation|20 Videos

  • COMMUNITCATION SYSTEMS

    NCERT FINGERTIPS|Exercise Bandwidth Of Transmission Medium|24 Videos

  • ATOMS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • CURRENT ELECTRICITY

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

A fax message is to be sent from Delhi to Washington via a geostationary satellite. The minimum distance between the dispatch and its getting received is (Take height of the geostationary satellite=36000km)

find the minimum colatitude which can directly receive a signal from a geostationary satellite.

Derive expression for the orbital velocity of a satellite and its time period. What is a geostationary satellite. Obtain the expression for the height of the geostationary satellite.

Satellite is revolving around earth. If its height is increased to four times the height of geostationary satellite, what will become its time period ?

Consider earth satellites in circular orbits. A geostationalry satellite must be at a height of about 36000 km from the earth's surface. Will any satellite moving at this height be a geostationary satellite? Will any satelite moving at this eight have a time period of 24 hours?

A satellite revolves in the geostationary orbit but in a direction east to west. The time interval between its successive passing about a point on the equator is:

NCERT FINGERTIPS-COMMUNITCATION SYSTEMS-Propagation Of Electromagnetic Waves
  1. By what percentage will the transmission range of a T.V. tower be affe...

    Text Solution

    |

  2. A TV transmission tower has a height of 240 m. Signals broadcast from ...

    Text Solution

    |

  3. A fax message is to be sent from Delhi to washington via a geostationa...

    Text Solution

    |

  4. A 50 MHz sky wave sky wave takes 4.04 ms to reach a receiver via re-tr...

    Text Solution

    |

  5. What should be the length of the dipole antenna for a carrier wave of ...

    Text Solution

    |

  6. A radio can tune to any station in 7.5 MHz to 12MHz band. The correspo...

    Text Solution

    |

  7. On a particular day, the maximum frequency reflected from the ionosphe...

    Text Solution

    |

  8. Ground wave have wavelength

    Text Solution

    |

  9. The mode of propagation used by short wave broadcast services is

    Text Solution

    |

  10. The skip zone in radio wave trasmission is that range where

    Text Solution

    |

  11. Which one of the following statements is wrong?

    Text Solution

    |

  12. The waves that are bent down by the ionosphere are

    Text Solution

    |

  13. The maximum line-of -sight distance d(M) between two antennas having h...

    Text Solution

    |

  14. Frequencies in the UHF range normally propagate by means of:

    Text Solution

    |

  15. If the whole earth is to be connected by LOS communication using spac...

    Text Solution

    |

  16. A ground receiver in line-of-sight communication cannot receive direct...

    Text Solution

    |

  17. Which of the following modes is used for line of sight

    Text Solution

    |

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

    Text Solution

    |

  19. Which of the following frequencies will be suitable for beyond the hor...

    Text Solution

    |

  20. A TV transmitting antenna is 81 m tall. How much service area it can c...

    Text Solution

    |