Home
Class 12
PHYSICS
The temperature of a black body becomes ...

The temperature of a black body becomes half of its original temperature, the amount of radiation emitted by the body will reduce to

A

`1//16`

B

`1//18`

C

`1//12`

D

`1//8`

Text Solution

Verified by Experts

The correct Answer is:
A
`(R_(2))/(R_(1))=(T_(2)^(4))/(T_(1)^(4))=(1)/(16)`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Newtons Law of Cooling)|40 Videos

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Question Given in MHT-CET)|79 Videos

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Kirchhoffs law of heat radiation)|19 Videos

  • INTERFERENCE AND DIFFRACTION

    NIKITA PUBLICATION|Exercise MULTPLE CHOICE QUESTIONS|333 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos

Similar Questions

Explore conceptually related problems

If the temperature of a black body becomes half of its original temperature, then the amount of radiation emitted by the body per second will be reduced to

If the temperature o fblack body decreases to half of the initial temperature, then the radiation emitted by the body will be what fraction of the earlier ?

The temperature of a black body is increased by "50%" .The amount of radiation emitted by the body increases by

At high temperature black body spectrum is .

The effective area of a black body is 0.1 m^2 and its temperature is 1000 K . The amount of radiations emitted by it per min is –

The temperature at which a black body ceases to radiate energy is .

The temperature of a radiation body increases by 30 % . Then the increase in the amount of radiation is 185%

The rate at which a black body emits radiation at a temperature T is proportional to

NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Stefans Law of Black Body Radiation)
  1. A black body at temperature 227^(@)C radiates heat at the rate of 5 ca...

    Text Solution

    |

  2. If the temperature of the sun (black body) is doubled, the rate of ene...

    Text Solution

    |

  3. The temperature of a black body becomes half of its original temperatu...

    Text Solution

    |

  4. A body at 300^(@)C radiates 10^(5) watt/m^(2). If the sun radiates 10^...

    Text Solution

    |

  5. Two bodies A and B are placed in an evacuated vessel maintained at a t...

    Text Solution

    |

  6. A metal ball of surface area 200 cm^(2) and temperature 527^(@)C is ...

    Text Solution

    |

  7. A solid sphere cools at the rate of 2.8^(@)C per minute, when its temp...

    Text Solution

    |

  8. Ratio of rate of radiation of heat of body at 227^(@)C to that of the ...

    Text Solution

    |

  9. The ratio of the rate of radiation of heat by a perfectly black body a...

    Text Solution

    |

  10. A body radiates heat at the rate of 50 J/s at 300 K. when the same bod...

    Text Solution

    |

  11. The rate of emission of heat energy of an iron ball of radius 5 cm is ...

    Text Solution

    |

  12. A cube, which may be regarded as a perfectly black body, radiates heat...

    Text Solution

    |

  13. The amount of thermal radiations emitted from one square metre area of...

    Text Solution

    |

  14. A black body radiates 3 J/cm^(2) s when its temperature is 127^(@)C. H...

    Text Solution

    |

  15. The rate of loss of heat by radiation frombody at 400^(@)C is R. then ...

    Text Solution

    |

  16. A ball is coated with lamp black. Its temperature is 327^(@)C and is p...

    Text Solution

    |

  17. A black body at a temperature of 227^(@)C radiates heat energy at the ...

    Text Solution

    |

  18. The temperature of a body is increased by 50%. The amount of radiation...

    Text Solution

    |

  19. Two solid spheres of radii R(1) and R(2) are made of the same material...

    Text Solution

    |

  20. Two spheres P and Q of the same colour and having radii 4 cm and 2 cm ...

    Text Solution

    |