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Which outcome follows the quenching of excited fluorophores?

A)Electrons return via radiationless decay
B)Increased fluorescence quantum yield occurs
C)Singlet oxygen generation efficiently happens
D)Stabilized excimer formation predominantly results

💡 Explanation

Radiationless decay occurs because fluorophore quenching provides an alternative relaxation pathway, therefore electrons return non-radiatively rather than emitting a photon because the *internal conversion* mechanism dissipates energy as heat/vibration.

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