Home
Class 12
PHYSICS
The amount of thermal radiations emitted...

The amount of thermal radiations emitted from one square metre area of a black body in one second when at a temperature of 100 K is

A

5.67 J

B

56.7 J

C

567 J

D

5670 J

Text Solution

Verified by Experts

The correct Answer is:
A
`(dQ)/(dtA)=sigmaT^(4)`
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

The amount of thermal radiations emitted from one square centimetre area of a black body in one second when at a temperature of 1000 K is:

The amount of thermal radiation energy emitted from the surface of a body is found to be proportional to the ........ power of the absolute temperature of the body.

Which of the following graphs correctly represents the relation between In (E) and In (T), where E is the amount of radiation emitted per unit time from a unit area of the body and T is the absolute temperature ?

The amount of radiations emitted per second by unit area of a hollow container at 10^(3^(@)) K will be-

The amount of radiation emitted by a perfectly black body is proportional to .

In the figure, the distribution of energy density of the radiation emitted by a black body at a given temperature is shown. The possible temperature of the black body is

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

Solar radiation emitted by the sun resembles the radiations emitted by a black body at the temprature of 6000 K. Maximum intensity is emitted at a wavelength of 4800 Å. If the temperature of the sun decreases from 6000 K to 4000 K , then the peak intensity would occur at a wavelength of

The ratio of energies of emitted radiation by a black body at 600 K and 900 K , when the surrounding temperature is 300 K , is

NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Stefans Law of Black Body Radiation)
  1. The rate of emission of heat energy of an iron ball of radius 5 cm is ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  11. A black body at a temperature of 127^(@)C radiates heat at the rate of...

    Text Solution

    |

  12. The ratio of loss of heat from a metal sphere at 327^(@)C to that of t...

    Text Solution

    |

  13. The radiant energy from the Sun incident normally at the surface of ea...

    Text Solution

    |

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

    Text Solution

    |

  15. If the temperature of a hot body is raised would increased by

    Text Solution

    |

  16. A 60 w bulb has a filament temperature of 2000 K. what will be the wat...

    Text Solution

    |

  17. The surface of a house hold radiator has an emissivity of 0.5 and an a...

    Text Solution

    |

  18. A body emits Q cal/cm^(2) of radiation at temperature 227^(@)C. If the...

    Text Solution

    |

  19. The thermal capacities of two bodies A and B are in the ratio 1:4. if ...

    Text Solution

    |

  20. A black body is at a temperature of 527^(@)C, to radiate twice as much...

    Text Solution

    |