Home
Class 11
PHYSICS
The maximum usable fequency in F-layer w...

The maximum usable fequency in F-layer with original frequency in 50 MHz will be

A

181 MHz

B

150 MHz

C

250 MHz

D

300 MHz

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    TARGET PUBLICATION|Exercise Competitive Thinking|46 Videos
  • COMMUNICATION SYSTEMS

    TARGET PUBLICATION|Exercise Evaluation Test|15 Videos
  • COMMUNICATION SYSTEMS

    TARGET PUBLICATION|Exercise Evaluation Test|15 Videos
  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos

Similar Questions

Explore conceptually related problems

Maximum usable frequency (MUF) in F-region layer is x, when the critical frequency is 60 MHz and the angle of incidence is 70^(@) , then x is

Maximum usable frequency ( MUF ) in F -region layer is x , when the critical frequency is 60 MHz and the angle of incidence is 60^(@) . Then x is

Energy of photon whose frequency is 10^(12) MHz , will be

What is the maximum usuable frequency (in MHz) for E-layer of atomosphere having critical frequency 4 MHz, when the angle of incidence is 60^(@)

What is the refractive index of E-layer when the electromgnetic wave frequency is 50 MHz and the number density of electrons is 5xx10^(5) electrons is 5xx10^(5) electrons //cm^(3) ?

A tuning fork A produces 4 beats/ s with tuning fork, B of fequency 256 Hz. When the fork A is filled beats are found to occurs at shorter intervals, then the original frequency will be

A signal wave of frequency 12 kHz is modulated with a carrier wave of frequency 2-51 MHz. The upper and lower side band frequencies are respectively.

On a particular day, the maximum frequency reflected from the ionosphere is 10 MHz The maximum electron density in ionosphere is

On a particular day, the maximum frequency reflected from the ionosphere is 10 MHz. On another day, it was found to increase to 11 MHz. Calculate the ratio of the maximum electron densities of the ionosphere on the two days. Point out a plausible explanation for this.

On a particular day , the maximum frequency reflected from the ionsphere is 10 MHz . On another day , it was found to decrease to 8 MHz . Calculate the ratio of the maximum electron densities of the ionosphere on the two days .

TARGET PUBLICATION-COMMUNICATION SYSTEMS-Critical Thinking
  1. If a number of sine waves with modulation indices n(1),n(2),n(3)… modu...

    Text Solution

    |

  2. Sinusoidal carrier voltage of frequency 1.5 MHz and amplitude 50V is a...

    Text Solution

    |

  3. In space communcation , the information can be passed from on place ...

    Text Solution

    |

  4. The maximum usable fequency in F-layer with original frequency in 50 M...

    Text Solution

    |

  5. In which of the region of earth's atmosphere temperature decreases wit...

    Text Solution

    |

  6. If the frequency of E.M radiations is halved then the energy of EM ra...

    Text Solution

    |

  7. The sky wave propagation is suitable for radiowaves of frequency

    Text Solution

    |

  8. mesosphere reflects which of them following type of wave, particularly...

    Text Solution

    |

  9. A geo-synchronous satellite is:

    Text Solution

    |

  10. The height of a T.V. tower is 300 m. What is the maximum distance upto...

    Text Solution

    |

  11. Electromagnetic waves of frequencies higher than 9sqrt(2) MHz are foun...

    Text Solution

    |

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

    Text Solution

    |

  13. A transmitting antenna at the top of a tower has a height of 50 m and ...

    Text Solution

    |

  14. When an electromagnetic wave enters the ionised layer of ionosphere,...

    Text Solution

    |

  15. for the first pair of side band frequencies, band width required for a...

    Text Solution

    |

  16. In FM, frequency deviation is

    Text Solution

    |

  17. Consider an optical communication system operating at lambda=800 nm. S...

    Text Solution

    |

  18. A telephone link operating at a center frequency of 10 GHz is etablish...

    Text Solution

    |

  19. Assertion : FM broadcast is preferred over AM broadcast . Reason...

    Text Solution

    |

  20. Assertion : Higher the modulation index the reception will be strong a...

    Text Solution

    |