Home
Class 12
PHYSICS
If the temperature o fblack body decreas...

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 ?

A

`1/2`

B

`1/4`

C

`1/8`

D

`1/(16)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Competitive thinking|187 Videos
  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Evaluation test|18 Videos
  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Evaluation test|18 Videos
  • INTERFERENCE AND DIFFRACTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos
  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos

Similar Questions

Explore conceptually related problems

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

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

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

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

The wavelength of radiation emitted by a body depends upon

If the temperature of the body is increased by 10%, the percentage increase in the emitted radiation will be

If the temperature of a hot body is increased by 50% , then the increase in the quantity of emitted heat radiation will be

TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -critical thinking
  1. A hot and a cold body are kept in vacuum separated from each other. Wh...

    Text Solution

    |

  2. Unit of Stefan's constant is

    Text Solution

    |

  3. If the temperature o fblack body decreases to half of the initial temp...

    Text Solution

    |

  4. If the temperature of a hot body is increased by 50%, then the increas...

    Text Solution

    |

  5. The temperatures of two bodies A and B are 727^(@)C and 127^(@)C . Th...

    Text Solution

    |

  6. A spherical black body with a radius of 20 cm radiates 440 W power at ...

    Text Solution

    |

  7. A body having a surface area of 50cm^2 radiates 300J of energy per min...

    Text Solution

    |

  8. At 127^(@)C radiated energy is 2.7 xx 10^(-3) J//s. At what temperatur...

    Text Solution

    |

  9. The rate of cooling at 600 K, if surrounding temperature is 300 K is R...

    Text Solution

    |

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

    Text Solution

    |

  11. A black body radiates 6 J//cm^2s when its temperature is 127 °C. How m...

    Text Solution

    |

  12. The ratio of masses of two metal spheres A and B is 8 : I. If their te...

    Text Solution

    |

  13. A hot liquid is kept in a big room. The logarithm of the numerical val...

    Text Solution

    |

  14. Rate of cooling of a body is 0 .2° C/min, when excess temperature is 2...

    Text Solution

    |

  15. A body cools at the rate of 0.75 °C/s, when it is 50 °C above the surr...

    Text Solution

    |

  16. A body cools at the rate of 0.75 °C/s, when it is 50 °C above the surr...

    Text Solution

    |

  17. A body takes 5 minutes for cooling from 50^(@)C to 40^(@)C Its temp...

    Text Solution

    |

  18. Consider two hot bodies B(1) and B(2) which have temperature 100^(@)"C...

    Text Solution

    |

  19. A body in laboratory takes 4 minutes to cool from 6 1 °C to 59 °C. If ...

    Text Solution

    |

  20. A pan filled with hot food cools from 50 °C to 49.9 °C in 5 s. If it c...

    Text Solution

    |