Classical Physics and the Bohr Model of Hydrogen Atom

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SUMMARY

The discussion centers on the application of classical physics to the Bohr model of the hydrogen atom, specifically regarding energy level transitions. It concludes that classical physics would predict continuous light emission, contrasting with the discrete energy levels observed in quantum mechanics. The participants analyze the implications of energy transitions, noting that a hydrogen atom in the n=2 state primarily allows for a single transition, the Lyman-alpha line, which does not produce a continuous spectrum. The consensus is that only energy levels with large quantum numbers might approach a classical viewpoint.

PREREQUISITES
  • Understanding of the Bohr model of the hydrogen atom
  • Familiarity with quantum mechanics and energy levels
  • Knowledge of blackbody radiation and spectra
  • Basic concepts of classical physics
NEXT STEPS
  • Research the implications of quantum numbers in atomic transitions
  • Study the Lyman-alpha transition and its significance in spectroscopy
  • Explore the differences between classical and quantum mechanical predictions of atomic behavior
  • Learn about blackbody radiation and its relation to energy transitions in atoms
USEFUL FOR

Students of physics, educators teaching atomic theory, and anyone interested in the foundational concepts of quantum mechanics and classical physics applications.

jstrike
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Homework Statement



Classical physics applied to the bohr model of the hydrogen atom would predict that light could be emitted continuously, rather than in discrete chunks of energy. Transitions between what kinds of energy levels would come close to the classical viewpoint?

A. Only levels having small quantum numbers.
B. Only when at least one of the levels has a very large quantum number.
C. Only levels of moderate quantum numbers.
D. There are no such levels.


The Attempt at a Solution



Have no idea what it is
 
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Think of it like this: a blackbody spectrum is what you get when there are a bunch of different energy transitions that could be made.

A hydrogen atom in the n=2 (princple q#) state has (basically) only one transition with only one possible energy, the Lyman-alpha line. Clearly this one line isn't a nice smooth blackbody spectrum. For a blackbody spectrum, you want a system that isn't constrained to only one or a few transitions, you want something with possible transitions of all different energies.
 

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