Question

WHAT IS FLUORESCENT?

Answer 1

Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form ofluminescence. In most cases, the emitted light has a longer wavelength, and therefore lower energy, than the absorbed radiation. The most striking example of fluorescence occurs when the absorbed radiation is in the ultraviolet region of the spectrum, and thus invisible to the human eye, while the emitted light is in the visible region, which gives the fluorescent substance a distinct color that can only be seen when exposed to UV light. However, unlike phosphorescence, where the substance would continue to glow and emit light for some time after the radiation source has been turned off, fluorescent materials would cease to glow immediately upon removal of the excitation source. Hence, it is not a persistent phenomenon.

Answer 2

Fluorescence is the emission of light by a substance that has absorbed light. Hope u like so mark it thanks.