Home
Class 11
PHYSICS
If a TV telecast isto cover a radius of ...

If a TV telecast isto cover a radius of 640 km, what should be the height of transmitting antenna?

A

32000 m

B

53000 m

C

42000 m

D

55000 m

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT THROUGH CONDUCTORS

    CHETANA PUBLICATION|Exercise EXERCISE|183 Videos
  • ELECTROSTATICS

    CHETANA PUBLICATION|Exercise EXERCISE|163 Videos

Similar Questions

Explore conceptually related problems

A transmitting antenna at the top of a tower has a height of 50 m and the height of the receiving antenna is 32 m. What is the maximum distance between them for satisfactory communication in line of sight mode ? (Radius of the earth (R ) = 6.4xx10^6 m) ( sqrt10 =3.16)

A meter gauge railway track is to be banked at a circular curve of a radius 450m. What should be the elevation of the outer rail above the inner rail for an optimum speed at 54km/h, So that there is no side thrust on the outer rail.

Name the type of waves which are used for line of sight (LOS) communication. What is the range of their frequencies? A transmitting antenna at the top of a tower has a height of 20m and the height of the receiving antenna is 45m. Calculate the maximum distance between them for satisfactory communication in LOS mode. (Radius of the Earth = 6.4 xx 10^(6) m)

A solid cylinder at rest at top of an inclined plane of height 2.7 m rolls down without slipping. If the same cylinder has to slide down a frictionless inclined plane and acquires the same velocity as that acquired by centre of mass of rolling cylinder at the bottom of the incline, what should be the height of the inclined plane?

A winding wire which is used to prepare a solenoid of length 80 cm can bear a maximum cuurent of 10 A. the cross-sectional radius of the solenoid is 3 cm. what should be the length of the winding wire if a magnetiic field of 0.2 T is to be produced at the centre of the solenoid along its axis?

Two particles are projected from the surface of the earth with velocities sqrt(5/7gR) and sqrt(2/5gR) where, R is the radius of the earth what should be the ratio of maximum heights attained?

The distance of coverage of a transmitting antenna is 12 . 8 km . Then the height of the antenna is (Given that redius of earth = 6400 km)

CHETANA PUBLICATION-ELECTROMAGNETIC WAVES AND COMMUNICATON SYSTEM-EXERCISE
  1. The maximum distance upto which TV transmission from a TV tower of he...

    Text Solution

    |

  2. The waves used by artificial satellites for communication purposes are

    Text Solution

    |

  3. If a TV telecast isto cover a radius of 640 km, what should be the hei...

    Text Solution

    |

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

    Text Solution

    |

  5. For television broadcasting , the frequency employed is normally

    Text Solution

    |

  6. A device that converts one form of energy into another form is termed ...

    Text Solution

    |

  7. The process of regaining the information from carrier wavesis called.....

    Text Solution

    |

  8. The outermost layer of the earth's atmosphere is........

    Text Solution

    |

  9. The antenna behaves as resonant circuit only when its length is..........

    Text Solution

    |

  10. The difference between the upper and lower frequency limits of the sig...

    Text Solution

    |

  11. The layer that adsorbs largest proportion of UV rays is

    Text Solution

    |

  12. Speed of electromagnetic waves is given

    Text Solution

    |

  13. The lower layer of the earth's atmosphere is called.

    Text Solution

    |

  14. Which of the following is NOT a part of electromagnetic spectrum?

    Text Solution

    |

  15. Operators working on X-ray equipment have a chance of getting skin dis...

    Text Solution

    |

  16. The electromagnetic spectrum contains different electromagnetic waves ...

    Text Solution

    |

  17. In T.V. and V.C.R. remote control uses

    Text Solution

    |

  18. The natural source of Ultraviolet rays is

    Text Solution

    |

  19. Radio waves and visible light in vacuum have

    Text Solution

    |

  20. To induce an e.m.f. in the coil

    Text Solution

    |