Physics, 10.03.2020 20:37 jadentdaniels

A quantum-mechanical system initially in its ground level absorbs a photon and ends up in the first excited state. The system then absorbs a second photon and ends up in the second excited state. For which of the following systems does the second photon have a longer wavelength than the first one?

(a) a harmonic oscillator;

(b) a hydrogen atom;

(c) a particle in a box.

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A quantum-mechanical system initially in its ground level absorbs a photon and ends up in the first...