Physics Asked on September 26, 2021
I am used to using the formula $ R_H (frac{1}{n^2_{final}}-frac{1}{n^2_{initial}}) $ to calculate the transition wavenumbers when an electron in a Hydrogen atom emits a photon. Can you use the same formula to calculate the wavenumber when a electron absorbs a photon?
Yes, the energy (and therefore the photon wavelength) required for the transition between two energy levels is independent of the "direction". One way to see this is observing absorption and emmision spectra of the hydrogen, where the position of the lines for both types is the same.
Correct answer by Pablo Lemos on September 26, 2021
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