The phenomenon in which a chemical absorbs light at one wavelength and emits it at a specific and longer wavelength is called:
A)differential interference contrast.
B)fluorescence.
C)deconvolution.
D)shadowing.

Question

Quizplus · Accepted Answer

This phenomenon is known as fluorescence. It occurs when a molecule is excited by absorbing light energy at a certain wavelength and then emits this energy at a longer wavelength. This shift in wavelength is known as the Stokes shift and is characteristic of each molecule. Fluorescence is widely used in biological research for imaging, labeling, and detection of molecules.

The Phenomenon in Which a Chemical Absorbs Light at One