Home
Class 12
PHYSICS
The weight of an object on the surface o...

The weight of an object on the surface of the Earth is 40 N. Its weight at a height equal to the radius of the Earth is

A

`lambda` in free space at the frequency of operation

B

` lambda//2` in free space at the frequency of operation

C

`lambda//4` in free space at the frequency of operation

D

`3lambda//4` in free space at the frequency of operation

Text Solution

Verified by Experts

The correct Answer is:
B, C
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

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

    AAKASH SERIES|Exercise LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - IV) (Straight Objective & More than one Correct Answer Type Questions)|20 Videos
  • COMMUNICATION SYSTEM

    AAKASH SERIES|Exercise LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - IV) (Straight Objective & More than one Correct Answer Type Questions)|20 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

A body weighs W newton at the surface of the earth. Its weight at a height equal to half the radius of the earth, will be

A body weighs W newton at the surface of the earth. Its weight at a height equal to half the radius of the earth, will be

A body weighs w Newton on the surface of the earth. Its weight at a height equal to half the radius of the earth, will be x/y w where x and y are coprimes . Find x and y

The weight of a body on the surface of the earth is 12.6 N. When it is raised to height half the radius of earth its weight will be

The weight of an object is 90 kg at the surface of the earth. If it is taken to a height equal to half of the radius of the earth, then its weight will become

The weight of an object at the centre of the earth of radius R is

If g is the acceleration due to gravity on the surface of the earth , its value at a height equal to double the radius of the earth is

If g be the acceleration due to gravity of the earth's surface, the gain is the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth is

What is the work done in taking an object of mass 1kg from the surface of the earth to a height equal to the radius of the earth ? ( G = 6.67 xx 10^(-11) Nm^(2)//Kg^(2) , Radius of the earth = 6400 km, Mass of the earth = 6 xx 10^(24) kg .)

The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is :

AAKASH SERIES-COMMUNICATION SYSTEM -LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - II) (Straight Objective & More than one Correct Answer Type Questions)
  1. The INCORRECT statement is :

    Text Solution

    |

  2. The weight of an object on the surface of the Earth is 40 N. Its weigh...

    Text Solution

    |

  3. A signal emiited by an antenna form a certain point can be received at...

    Text Solution

    |

  4. A radio station has two channels. One is AM at 1020kHz and the other i...

    Text Solution

    |

  5. Broadcasting antennas are generally

    Text Solution

    |

  6. If the audio signal is transmitted directly into space, the length of ...

    Text Solution

    |

  7. A TV tower has a height of 75m. What is the maximum distance upto whic...

    Text Solution

    |

  8. It a carrier wave of 1000 kHz is used to carry the signal, the length ...

    Text Solution

    |

  9. A radar has a power of 1 Kw and is operating at a frequency of 10 GHz....

    Text Solution

    |

  10. Then TV tower has a height of 100m. What is the maximum distance upto ...

    Text Solution

    |

  11. Is it necessary for a transmitting antenna to be at the same height as...

    Text Solution

    |

  12. A TV tower has a height of 75m. What is the maximum area upto which th...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. The maximum distance between the transmitting and receiving TV towers ...

    Text Solution

    |

  16. A T.V. transmitting antenna is 128 m tall . If the receiving antenna i...

    Text Solution

    |

  17. If height of transmitting tower increases by 21% then the area to be c...

    Text Solution

    |

  18. The power of transmitter 19 kW. The power of the Carrier wave is, if t...

    Text Solution

    |

  19. The power of a AM transmitter is 100 W. If the modulation index is 0.5...

    Text Solution

    |