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UV Luminance Spectroscopy

Q1:

In the intersystem crossing

A the spin of an excited electron reverses, changing the state of the molecule (from singlet state to triplet state or vice versa)

B a molecule converts its excess energy to light, and emits a photon

C a molecule converts excess electronic energy to vibrational energy

D all of the above

ANS:A - the spin of an excited electron reverses, changing the state of the molecule (from singlet state to triplet state or vice versa)

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