Home
Class 12
PHYSICS
A 100m long antenna is mounted on a 500m...

A `100m` long antenna is mounted on a `500m` tall building. The complex can become a transmission tower of waves with `lambda`

A

`~ 400 m`

B

`~ 25 m`

C

`~ 150 m`

D

`~ 2400 m`

Text Solution

Verified by Experts

The correct Answer is:
A

Given, length of the building (l) is given by
l = 500m
we know that, wavelength of the wave which can be transmitted by
`lambda~4l = 4 xx 100 = 400m`
Promotional Banner

Topper's Solved these Questions

  • ATOMS

    NCERT EXEMPLAR|Exercise Atoms|29 Videos
  • CURRENT ELECTRICITY

    NCERT EXEMPLAR|Exercise Current Electricity|31 Videos

Similar Questions

Explore conceptually related problems

A 100m long antenna is mounted on a 500m tall building. The complex ca become a transmission tower of waves with lambda

A 100 m long anteena is mounted on a 500 m tall building. The complex can become a transmission tower for waves with lambda .

An antenna is mounted on a 400 m tall building. What will be the wavelength of signal that can be radiated effectively by the transmission tower upto a range of 44 km ?

A 25m long antenna is mounted on an antenna towe. The height of the ancora towels 75 m The wavelength (in meter) of the signal transmitted by this antenna would be

From a point on the ground,the angles of elevation of the bottom and the top of a transmission tower fixed at the top of a 20m high building are and and respectively.Find the height of the tower.

From a point on the ground the angles of elevation of the bottom and top of a transmission tower fixed at the top of 20m high building are 450 and 60 respectively. Find the height of the transmission tower.

A radio transmitter antenna of height 100 m stands at the top of a tall building. At a point on the ground, the angle of elevation of bottom of the antenna is 45^@ and that of top of antenna is 60^@ . What is the height of the building ?

NCERT EXEMPLAR-COMMUNICATION SYSTEM-Communication System
  1. Three waves A,B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respe...

    Text Solution

    |

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

    Text Solution

    |

  3. A 1 KW signal is transmitted using a communication channel which pro...

    Text Solution

    |

  4. A speech signal of 3 kHz is used to modulate a carrier signal of frequ...

    Text Solution

    |

  5. A message signal of freuency omega(m) is superposed on a carrier wave ...

    Text Solution

    |

  6. Identify the semiconductor devices whose characteristics are given bel...

    Text Solution

    |

  7. A male voice after modulation-transmission sounds like that of a femal...

    Text Solution

    |

  8. A basic communication system consists of (A) transmitter (B) informat...

    Text Solution

    |

  9. Identify the mathematical expression for amplitude modulated wave:

    Text Solution

    |

  10. An audio signal of 15 kHz frequency cannot be transmitted over long di...

    Text Solution

    |

  11. Audio sine waves of 3 kHz frequency are used to amplitude modulate a c...

    Text Solution

    |

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

    Text Solution

    |

  13. The frequency response curve (figure) for the filter circuit used for ...

    Text Solution

    |

  14. In amplitude modulation, the modulation index mu, is kept less than or...

    Text Solution

    |

  15. Which of the following would produce analog signals and which would pr...

    Text Solution

    |

  16. Would sky waves be suitable for transmission of TV signals of 60 MHz f...

    Text Solution

    |

  17. Two waves A and B of frequencies 2MHz and 3 MHz, respectively are beam...

    Text Solution

    |

  18. The maximum amplitude of an AM wave is found to be 15 V while its mini...

    Text Solution

    |

  19. Compute LC product of a tuned amplifer circuit required to generate a ...

    Text Solution

    |

  20. Why is an AM signal likely to be more noisy than a FM signal upon tran...

    Text Solution

    |