Home
Class 12
PHYSICS
A black body is at a temperature 300 K. ...

A black body is at a temperature `300 K`. It emits energy at a rate, which is proportional to

A

`(300)^(4)`

B

`(300)^(3)`

C

`(300)^(2)`

D

300

Text Solution

Verified by Experts

The correct Answer is:
A
According to Stefan's law of radiation, `EpropT^(4)prop(300)^(4)`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES ANDRADIATION

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 2|50 Videos

  • INTERFERENCE AND DIFFRACTION OF LIGHT

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|24 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|20 Videos

Similar Questions

Explore conceptually related problems

A black body is at temperature of 500 K . It emits energy at rate which is proportional to

A black body emits

A black body is at 727^(@)C . It emits energy at a rate which is proportional to

A black body at high temperature emits thermal radiations of

The rectangular surface area 12cm xx 6cm of a black body at a temperature of 127^(@)C , emits heat energy at the rate of Q units per second. If the length and breadth of the surface area are each reduced to half of its initial value and the temperature is increased to 327^(@)C , then the rate of emission of heat energy will be

A black body A at a temperature of 527^(@)C , emits radiant energy at the rate of 16 watt. Another black body B at temperature 127^(@)C , emits radiant energy at the rate 8 watt in the same surrounding. Compare the surface areas of A and B.

A black body is at a temperature of 2880 K. The energy of radiation emitted by this object with wavelength between 4990 A and 5000A is E_(1) , and that between 9990 A and 10000 A is E_(2) . Find the ratio of E_(2) and E_(1) .

A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is U_(1) , at wavelength 500 nm is U_(2) and at 1000 nm is U_(3) , Wien's constant, b=2.88xx10^(6) nm K, which of the following is correct ?

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-KINETIC THEORY OF GASES ANDRADIATION-MHT CET Corner
  1. The gases carbon-monoxide (CO) and nitrogen at the same temperature ha...

    Text Solution

    |

  2. We consider a thermodynamic system. If DeltaU represents the increase ...

    Text Solution

    |

  3. Newton's law of cooling holds good provided the temperature difference...

    Text Solution

    |

  4. At what temperature, pressure remaining unchanged, will the rms veloci...

    Text Solution

    |

  5. At constant pressure , which of the following is true ?

    Text Solution

    |

  6. In terms of mechanical unit , C(p)-C(v) =.. Where , C(p) and C(v) are ...

    Text Solution

    |

  7. The ratio of energy of emitted radiation of a black body at 27^(@)C an...

    Text Solution

    |

  8. With same initial conditions , an ideal gas expands from volume V(1)"...

    Text Solution

    |

  9. A body takes 4 minutes to cool from 100^(@)C to 70^(@)C. To cool from ...

    Text Solution

    |

  10. A gas expands adiabatically at constant pressure such that its tempera...

    Text Solution

    |

  11. The state of a thermodynamic system is represented by

    Text Solution

    |

  12. A black body is at a temperature 300 K. It emits energy at a rate, whi...

    Text Solution

    |

  13. The root mean square speed of hydrogen molecule at 300 K is 1930m/s. T...

    Text Solution

    |

  14. The wavelength of maximum energy released during an atomic axplosion w...

    Text Solution

    |

  15. A cup of tea cools from 80^(@)C to 60^(@)C in one minute. The ambient ...

    Text Solution

    |

  16. The rms velocity of a particle is v at pressure p. If the pressure inc...

    Text Solution

    |

  17. A measure of the degree of disorder of a system is known as

    Text Solution

    |

  18. The kinetic energy of 1 g molecule of a gas, at normal temperature and...

    Text Solution

    |

  19. The temperature of two bodies A and B are respectively 727^(@)C and 32...

    Text Solution

    |

  20. 110 J of heat is added to a gaseous system, whose internal energy cha...

    Text Solution

    |