In the process of fluorescence, part of the input energy immediately
A) is emitted as higher-frequency light and the rest lower- frequency light.
B) becomes internal energy and the rest lower-frequency light.
C) cascades to excite other atoms in the material.
D) excites electrons to metastable states.
E) none of these

Question

Quizplus · Accepted Answer

In fluorescence, part of the input energy is converted into internal energy (heat, vibrations, etc.), and the rest is emitted as light of a lower frequency than the absorbed light. This is because the emitted photons have less energy than the absorbed ones, with the difference typically dissipated as heat within the material.

In the Process of Fluorescence, Part of the Input Energy