Home
Class 12
PHYSICS
If temperature of a black body increases...

If temperature of a black body increases from `7^(@)C` to `287^(@)C` , then the rate of energy radiation increases by

A

`((287)/(7))^(4)`

B

16

C

4

D

2

Text Solution

Verified by Experts

The correct Answer is:
B
We use `P prop T^(4)`
`(P_(1))/(P_(2)) =((7+273)^(4))/((287 + 273)^(4)) =(1)/(16)`
`P_(2) = 16 P_(1)`
Promotional Banner

Topper's Solved these Questions

  • HEAT TRANSFER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs with One or More Option Correct|20 Videos

  • HEAT TRANSFER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSEP,INPhO&IPhO|66 Videos

  • HEAT TRANSFER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Conceptual MCQs Single Option Correct|24 Videos

  • HEAT AND THERMAL EXPANSION

    PHYSICS GALAXY - ASHISH ARORA|Exercise UNSOLVED NUMRICAL PROBLEMS FOR PREPARATION OF NSEP, INPhO & IPhO|82 Videos

  • Kinetic Theory of Gases and Gas Laws

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSEP, INPhO & IPhO|64 Videos

Similar Questions

Explore conceptually related problems

If the temperature of a black body incresese from 7^(@)C to 287^(@)C then the rate of energy radiation increases by

The temperature of a black body is increased from 7^(@)C to 567^(@)C , then the rate of energy radiation becomes

If temperature of black body increases from 300K to 900K , then the rate of energy radiation increases by

If the temperature of a black body be increased from 27^(@)C to 327^(@)C the radiation emitted increases by a fraction of

The temperature of the body is increased from -73^(@)C to 357^(@)C , the ratio of energy emitted per second is

Temperature of a black body increases from 327^(@)C to 927^(@)C , the initial energy possessed is 2KJ, what is its final energy

A black body is heated from 7^(@)C to 287^(@)C . The ratio of radiation emitted is:

The temperature of a body in increased from 27^(@)C to 127^(@)C . By what factor would the radiation emitted by it increase?

PHYSICS GALAXY - ASHISH ARORA-HEAT TRANSFER -Numerical MCQs Single Options Correct
  1. Two cylindrical rods of lengths l(1) and l(2), radii r(1) and r(2) hav...

    Text Solution

    |

  2. The amount of thermal radiations emitted from one square centimetre ar...

    Text Solution

    |

  3. If temperature of a black body increases from 7^(@)C to 287^(@)C , the...

    Text Solution

    |

  4. A body cools from 60^(@)C to 50^(@)C in 10 minutes . If the room tempe...

    Text Solution

    |

  5. Given that p joule of heat is incident on a body and out of it q joule...

    Text Solution

    |

  6. A black body radiates 3 joule per square centimeter per second when it...

    Text Solution

    |

  7. The rate of loss of heat by radiation from a body at 400^(@)C is R. Th...

    Text Solution

    |

  8. Two rods of the same length and material transfer a given amount of he...

    Text Solution

    |

  9. A body cools from 50.0^(@)C to 49.9^(@)C in 5s. How long will it take ...

    Text Solution

    |

  10. Radiation from a black body at the thermodynamic temperature T(1) is m...

    Text Solution

    |

  11. Two bars of equal length and the same cross-sectional area but of diff...

    Text Solution

    |

  12. A composite slab consists of two parts of equal thickness. The thermal...

    Text Solution

    |

  13. The room temperature is 20''C. Water in a container cools from 55^(@)C...

    Text Solution

    |

  14. When the temperature difference between inside and outside of a room i...

    Text Solution

    |

  15. A wall has two layers A and B, each made of different materials. Both ...

    Text Solution

    |

  16. You are given two spheres of same material and radii 10 cm and 20 cm. ...

    Text Solution

    |

  17. An object is cooled from 75^(@)C to 65^(@)C in 2 min in a room at 30^(...

    Text Solution

    |

  18. The temperature of a room heated by heater is 20^@C when outside tempe...

    Text Solution

    |

  19. The thermal conductivity of two materials are in the ratio 1 : 2. What...

    Text Solution

    |

  20. Two rods made of same material having same length and diameter are joi...

    Text Solution

    |