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mfb- t1_iwp2bcw wrote

The photon can be absorbed if another photon of 0.4 energy is emitted.

https://en.wikipedia.org/wiki/Raman_scattering

There can be some more exotic options, too. If your atom is moving quickly towards the light source then the photon could have enough energy for the third energy level, in our reference frame it loses kinetic energy.

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