Home
Class 11
PHYSICS
Comment on the statement: "The radiation...

Comment on the statement: "The radiation of a black body is white."

Text Solution

Verified by Experts

A typical black body absorbs all the radiations incident on it but when heated to very high temperature, it emits radiations of all wavelengths, which appear as white. For example, Sun is considered as a black body, although it emits white radiations.
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    MODERN PUBLICATION|Exercise TOUGH AND TRICKY PROBLEM|10 Videos

  • THERMAL PROPERTIES OF MATTER

    MODERN PUBLICATION|Exercise NCERT FILE (TEXTBOOK EXERCISE)|25 Videos

  • THERMAL PROPERTIES OF MATTER

    MODERN PUBLICATION|Exercise PRACTICE PROBLEM|28 Videos

  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    MODERN PUBLICATION|Exercise Chapter Practice Test (for Board Examination)|16 Videos

  • UNITS AND MEASUREMENT

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|15 Videos

Similar Questions

Explore conceptually related problems

Assertion : Coefficient of absorption of radiation of an ideal black body is 1 . Reason : An ideal black body emits radiation of all wavelengths.

The rate of radiation of a black body at 0° C is EJ/sec . The rate of radiation of this black body at 273(@)C will be

The rate of radiation from a black body at 1^(@)C is E The rate of radiation from this black body at 273^(@)C is .

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 ratio of energy of emitted radiation of a black body at 27^(@)C and 927^(@)C is

The rate of emission of radiation of a black body at 273^(@)C is E , then the rate of emission of raidiation of this body at 0^(@)C will be

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.

Black body radiation is white and a hole in the cavity of a radiator is a black body. Explain.

MODERN PUBLICATION-THERMAL PROPERTIES OF MATTER-CONCEPTUAL QUESTIONS
  1. Why is it preferred to have small heat capacity of a thermometer bulb?

    Text Solution

    |

  2. Mercury boils at 367^(@)C. However, mercury thermometers are made such...

    Text Solution

    |

  3. What is the necessary condition for the difference in lengths of a bra...

    Text Solution

    |

  4. In order to loosen a stopper from the neck of a glass bottle, boiling ...

    Text Solution

    |

  5. A long cylindrical metal vessel, having a linear coefficient (alpha), ...

    Text Solution

    |

  6. There are two sphers of same radius and material at the same temperatu...

    Text Solution

    |

  7. Water is placed inside a closed tube and a candle is placed below the ...

    Text Solution

    |

  8. Three objects sphere , a cube and a circular plate of equal mass are ...

    Text Solution

    |

  9. On a hot day, a car is left in sunlight with all the windows closed. A...

    Text Solution

    |

  10. A black platinum wire, when heated, first appears dull red, then yello...

    Text Solution

    |

  11. Statement -1 : When hot water is poured in a beaker of thick glass, th...

    Text Solution

    |

  12. A beaker filled with water at 4 .^(@)C over flows if the temperature o...

    Text Solution

    |

  13. In an experiment, a safety pin is placed on a sheet of paper and the s...

    Text Solution

    |

  14. Can we boil water inside a satellite revolving earth?

    Text Solution

    |

  15. Is it necessary that all black coloured objects should be considered b...

    Text Solution

    |

  16. Comment on the statement: "The radiation of a black body is white."

    Text Solution

    |