Home
Class 12
PHYSICS
Ozone layer above earth's atmosphere wil...

Ozone layer above earth's atmosphere will not

A

It is a top most layer in earth's atmosphere which is highly ionized and inspite of recombination, ionization persists to some degree.

B

The actual air density in the F layer is low but ionization density in this layer is high so most of the molecules in this layer are in ionized state at night.

C

Due to low density of air in layer, the molecular have a large free path. The molecular collision rate is low.

D

All the above

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (Space Communication)|35 Videos
  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (Line Communication)|10 Videos
  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (Modulation)|23 Videos
  • COMMUNICATION SYSTEM

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

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|27 Videos

Similar Questions

Explore conceptually related problems

The earth's atmosphere is richer in

Ozone layer of upper atmosphere is being destroyed by:

Ozone layer exist in

Ozone layer exist in

Ozone layer occurs in

The ozone layer absorbs

A : Environmental damage has depleted the ozone layer in the atmosphere. R : Increase in ozone decreases the amount of UV radiation to earth.

Ozone layer is atmosphere exist at the height of

The altitude of the ozone layer in the atmosphere and the ‘type’ of the electromagnetic waves emitted by the sun being absorbed by it are respectively:

AAKASH SERIES-COMMUNICATION SYSTEMS -Exercise - IA (Sky Wave propagation)
  1. When a sound wave is reflected from a wall, the phase difference betwe...

    Text Solution

    |

  2. Find the ratio of 3 km to 300 m

    Text Solution

    |

  3. The frequency band used in the downlink of satellite communication is

    Text Solution

    |

  4. Ground wave have wavelength

    Text Solution

    |

  5. In sky wave mode of propagation, why is the frequency rangy of tranmit...

    Text Solution

    |

  6. PCT is responsible for

    Text Solution

    |

  7. Explain the following: Aniline is less basic than ammonia.

    Text Solution

    |

  8. With increases of ionic density, the R.I, of ionosphere

    Text Solution

    |

  9. The frequency of amplitude modulated wave is equal to

    Text Solution

    |

  10. The highest frequency of transmitted wave that is returned to the eart...

    Text Solution

    |

  11. Explain the principle and working of a cyclotron with the help of a sc...

    Text Solution

    |

  12. Two waves A and B of frequencies 2MHz and 3MHz, respectively are beame...

    Text Solution

    |

  13. Electromagnetic waves with frequencies greater than the critical frequ...

    Text Solution

    |

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

    Text Solution

    |

  15. Ozone layer above earth's atmosphere will not

    Text Solution

    |

  16. A wave has velocity u In medium P and velocity 2u in medium Q. If the ...

    Text Solution

    |

  17. A gene is said to be dominant if

    Text Solution

    |

  18. Refractive index of lonosphere is

    Text Solution

    |

  19. Three waves A,B and C of frequencies 1600 KHz, 5MHz and 60 MHz, respec...

    Text Solution

    |

  20. Which of the following frequency will be suitable for beyond the horiz...

    Text Solution

    |