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<a https://www.thestudentroom.co.uk/showthread.php?t=7467335'> Year 12s: what will be the first way you research your future options? >>
<a https://www.thestudentroom.co.uk/showthread.php?t=7467335'> Year 12s: what will be the first way you research your future options? >>

what's this equation?

I'm trying to figure out an equation for the frequency of light required to excite a molecule between two energy levels, if the energies of the two levels are denoted e upper and e lower?


Thank you
I think you should be asking the Quantum Physics forum about this.
E = hf, where is E is the energy difference between the two levels (in J not electron volts), h is Planck's constant, and f is the frequency (Hz) of the emitted photon.

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