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Reported Question / Answer
Q.) Fluorescence occurs when
1)
a molecule returns to the electronic ground state from an excited singlet state by losing it's excess energy as a photon
2)
a molecule returns to the electronic ground state from an excited triplet state by losing it's excess energy as a photon
3)
none of the above
4)
a molecule lowers its vibrational energy by losing it's excess energy as a photon
5)
NULL
Answer :
1
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