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

Question

Quizplus · Accepted Answer

In fluorescence, part of the input energy is converted into internal energy (e.g., heat), and the rest is emitted as lower-frequency light compared to the absorbed light. This is due to the Stokes shift, where the emitted photons have less energy than the absorbed photons, with the difference typically dissipated as vibrational energy (internal energy).

In the Process of Fluorescence, Part of the Input Energy