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A question about Wien's law?

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  1. Oct 2, 2015 #1
    wein law talk in temperature upper 0 kelvin the mass have radiate that lenghth wave is λ=b/T
    my question is this rule is true for all elements all products and all condition!!!
    wiens_law.gif
     
  2. jcsd
  3. Oct 2, 2015 #2

    Bystander

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  4. Oct 3, 2015 #3
    thanks,ok,i will read your link.my question is has it exclusion in nature????
     
  5. Oct 3, 2015 #4
    has Wien's displacement law exclusion??my mean is is there a material that in upper of 0 kelvin don't radiate any wave from itself,please help,thanks very much
     
  6. Oct 3, 2015 #5

    mfb

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    Such a material does not exist.

    There are materials where the position of the peak (as frequency) is not proportional to temperature, but this is a completely different question.

    Edit: I merged the two threads.
     
  7. Oct 3, 2015 #6
    please me introduce these materials,"here are materials where the position of the peak (as frequency) is not proportional to temperature"
     
  8. Oct 3, 2015 #7

    mfb

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    All colored materials that are heat-resistant enough, for example.
    You just need some deviation from a blackbody spectrum, and nearly no object is a perfect blackbody.
     
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