0
$\begingroup$

enter image description here

I have read that Wilhelm Wien gave his formula to match the radiation curve of a black body as shown in the picture; which works well in high frequency region. Another formula by Rayleigh-Jeans is fine with low frequency EM waves. Then the correct function to describe the curve was given by Max Planck.

I have been trying to find out how this curve was experimentally discovered in the first place. So far I have come to know two scientists named Lummer and Pringsheim experimentally determined the curve but I can’t seem to find their method on the internet.

If someone could shed some light on the matter, it would be appreciated.

Thank you.

Improve this question
$\endgroup$
4
  • $\begingroup$ the experiment is discussed in this talk mrao.cam.ac.uk/~mph/concepts/concepts_quanta1.pdf $\endgroup$
    – anna v
    Commented Apr 23, 2022 at 10:27
  • $\begingroup$ the reference to the LandP work in an old journal is number 4 herehttps://adsabs.harvard.edu/full/1901ApJ....14..335R $\endgroup$
    – anna v
    Commented Apr 23, 2022 at 10:36
  • 1
    $\begingroup$ A Treatise On Heat by M.N. Saha and B.N. Srivastava, page 532, explains the methods of Lummer and Pringsheim. $\endgroup$
    – Vikash
    Commented Apr 23, 2022 at 10:43
  • $\begingroup$ @Vikash I couldn’t find it in that exact page, though there was some mention in the pages around 630 but still I didn’t see the method of the experiment there. $\endgroup$
    – AYM Shahriar Rahman
    Commented Aug 15, 2022 at 4:42

1 Answer 1

Reset to default
1
$\begingroup$

With correction: A Treatise On Heat by M.N. Saha and B.N. Srivastava, pages 302-304, explains the methods of Lummer and Pringsheim. See attached screenshot: enter image description here

enter image description here

Improve this answer
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.