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The theoretical expression for blackbody radiation that matched experiment was derived around 1900 by:
ANiels Bohr
BIsaac Newton
CJohann Balmer
DMax Planck
Answer & Solution
Correct answer: D. Max Planck
1. The ultraviolet catastrophe stood until someone changed an assumption about energy.
2. Finally, around 1900, Max Planck derived a theoretical expression for blackbody radiation.
3. It fit the experimental observations exactly, within experimental error.
4. Bohr later built on Planck's ideas of quantisation when modelling the atom.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 6 'Electronic Structure and Periodic Properties of Elements', sections 6.1-6.5_
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