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

Ozone layer above earth's atmosphere will not

A

Prevent infrared radiations from sun reaching earth

B

Prevent infrared rays reflected from earth from escaping earth's atmosphere

C

Prevent ultraviolet rays from sun

D

Reflect back radio waves

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION B Objective (Only one answer)|20 Videos

  • COMMUNICATION SYSTEMS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION C (Linked Comprehension)|4 Videos

  • COMMUNICATION SYSTEMS

    AAKASH INSTITUTE ENGLISH|Exercise Try Yourself|7 Videos

  • ATOMS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION J (Aakash Challengers )|5 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION-J|10 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 INSTITUTE ENGLISH-COMMUNICATION SYSTEMS -ASSIGNMENT SECTION A Objective (Only one answer)
  1. A message signal of frequency omega(m) is superposed on a carrier wave...

    Text Solution

    |

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

    Text Solution

    |

  3. A basic communication system consists of A. transmitter. B. informati...

    Text Solution

    |

  4. Identify the mathematical expression for amplitude modulated wave

    Text Solution

    |

  5. The distance between consecutive maxima and minima is given by-

    Text Solution

    |

  6. Long distance short-wave radio broadcasting uses

    Text Solution

    |

  7. Broadcasting antennas are generally

    Text Solution

    |

  8. For television broadcasting, the frequency employed is normally

    Text Solution

    |

  9. The sound waves after being converted into electrical waves are not tr...

    Text Solution

    |

  10. The process of superimposing signal frequency (i.e., audio wave) on th...

    Text Solution

    |

  11. In an amplitude modulated wave for audio frequency of 500 cycles/secon...

    Text Solution

    |

  12. If there were no atmosphere, the average temperature on the surface of...

    Text Solution

    |

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

    Text Solution

    |

  14. Radiowaves of constant amplitude can be generated with

    Text Solution

    |

  15. Ozone layer above earth's atmosphere will not

    Text Solution

    |

  16. An audio signal of amplitude 0.1 V is used in amplitude modulation of ...

    Text Solution

    |

  17. The frequency of amplitude modulated wave is equal to

    Text Solution

    |

  18. The radio waves of frequency ranging from 2 MHz to 30 MHz are called

    Text Solution

    |

  19. A device which connects one computer to another is known as

    Text Solution

    |

  20. The loss of strength of a signal while propagating through a medium is...

    Text Solution

    |