Home
Class 12
PHYSICS
A hot water radiator at 310 K temperatur...

A hot water radiator at 310 K temperature radiates thermal radiation like a black body. Its total surface area is `1.6m^(2).` Find the thermal power radiated by it.

Text Solution

Verified by Experts

t = 10 minutes = `10 x 60 s = 600s`
The emissive power of a body ,` E = Q/(At)`
` E= 6000/ (2xx 10^(-2) xx 600) = (10 xx 10^(2))/2 = 500 J//m^(2) or 500 W//m^(2)`
Promotional Banner

Topper's Solved these Questions

  • SOLVED PROBLEMS - I

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise ASSIGNMENTS|24 Videos
  • SOLVED PROBLEMS - I

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise STATIONARY WAVES|17 Videos
  • SHORT ANSWER QUESTIONS

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Assignments|3 Videos
  • SOLVED PROBLEMS-II

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Assignments|5 Videos

Similar Questions

Explore conceptually related problems

A black body at high temperature emits thermal radiations of

The thermal radiation from a hot body travels with a velocity of

Mark out the correct statement with respect to thermal radiations emitted by a black body

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

An electric heater emits 100W of thermal radiation. The coil has a surface area of 0.02m^(2) . Assuming that the coil radiates like a blackbody, Find its temperature. Sigma=6.00xx10^(-s)Wm^(-2)K(-4) .

A black body, which is at a high temperature TK thermal radiation emitted at the rate of E W//m^(2) . If the temperature falls to T/4 K, the thermal radiation emitted in W//m^(2) will be

The coefficient of absorption of the thermal radiation of body is

The coefficient of absorption of the thermal radiation of body is

NAVNEET PUBLICATION - MAHARASHTRA BOARD-SOLVED PROBLEMS - I -KINETIC THEORY OF GASES AND RADIATION
  1. Calculate the total kinetic energy of one kilo mole of Oxygen gas at 2...

    Text Solution

    |

  2. The kinetic energy of 1 kg of oxygen at 300 K is 1.169 xx 10^(5) J ....

    Text Solution

    |

  3. Calculate the rms speed of helium atoms at 127^(@) C .

    Text Solution

    |

  4. Find the number of molecules per unit volume of oxygen at NTP. [Mass o...

    Text Solution

    |

  5. What is the thermal efficiency of a heat engine if in one cycle the wo...

    Text Solution

    |

  6. In one cycle, a heat engine rejects 80% of the energy absorbed from t...

    Text Solution

    |

  7. In a refrigerator, the external work done on the working substance in ...

    Text Solution

    |

  8. Radiant energy is incident on a body at the rate of 1000 joules per mi...

    Text Solution

    |

  9. A black body A at a temperature of 527^(@)C, emits radiant energy at t...

    Text Solution

    |

  10. The maximum radiant power of a certain star is at wavelength 600 nm. T...

    Text Solution

    |

  11. A hot water radiator at 310 K temperature radiates thermal radiation l...

    Text Solution

    |

  12. If the emissive power of a certain body at a certain temperature is 20...

    Text Solution

    |

  13. What is the emissive power of a perfect blackbody at 1000 K ?

    Text Solution

    |

  14. A Fey 's blackbody is at 727^(@)C . What is the power radiated per un...

    Text Solution

    |

  15. Compara the rates of radiation of a metal sphere at 600 K and 300 K

    Text Solution

    |

  16. Assume that a 100W electric bulb loses its energy entirely by radiati...

    Text Solution

    |

  17. A body of surface area 10 cm^(2) and temperature 727 ^(@) C emits 6...

    Text Solution

    |

  18. Calculate the energy radiated in one minute by a blackbody of surface ...

    Text Solution

    |

  19. A hot metal sphere cools from 60^(@)C " to " 52^(@)C in 5 minutes and...

    Text Solution

    |

  20. A hot body is kept in cooler surroundings. Its rate of cooling is 3^(...

    Text Solution

    |