In the process of fluorescence,the input is high-frequency light and the output is
A)higher-frequency light.
B)equally high-frequency light.
C)lower-frequency light.

Question

Quizplus · Accepted Answer

In fluorescence, the input is high-frequency light (usually in the ultraviolet range), which is absorbed by a molecule and causes it to become excited. The excited molecule then undergoes a rapid non-radiative transition to a lower energy state called the excited singlet state. From this state, the molecule can either return to its ground state by emitting a photon of light (fluorescence) or release the energy as heat. The emitted photon has a lower frequency (and thus longer wavelength) than the absorbed photon, making the answer C the correct choice.

In the Process of Fluorescence,the Input Is High-Frequency Light and the Output