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Black body radiation

  1. Jul 22, 2013 #1
    why or how does an object emit radiation of different wavelength for a given temperature?
     
  2. jcsd
  3. Jul 22, 2013 #2

    Nugatory

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    Staff: Mentor

    Google for "black body radiation", read what you find there, and if you have more specific questions or need help with some point, come back with a more focused questiojn - you'll get better answers faster that way.
     
  4. Jul 22, 2013 #3
    The doubt is, how can a body emit radiations of different wavelength, for a given temperature ?
     
  5. Jul 22, 2013 #4

    Dale

    Staff: Mentor

    The thermal motions and other degrees of freedom occur at a wide variety of frequencies, and so energy is emitted at a variety of frequencies.
     
  6. Jul 22, 2013 #5

    Nugatory

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    Staff: Mentor

    Temperature is a sort of macroscopic average across a very large number of microscopic particles doing very different things. Think of the steady buzz of conversation you hear in a crowded room when many different people are having many different conversations in many different tones of voices.
     
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