Infrared radiation.
Fluorescence is glowing, or giving off light.
It becomes longer
Infrared radiation has longer wavelengths.
The infrared (IR) radiation has a longer wavelength (and a lower frequency) than ultraviolet (UV) radiation. The former is below the visible spectrum, and the latter is above that visible (sometimes called optical) spectrum. However, IR radiation does not have the longest wavelength in the Electromagnetic Spectrum. That would be the Radio Waves. Additionally,: The prefix Infra- suggests "standing under, sub-, inferior to" (IR: Standing under Red light waves) The prefix Ultra- suggests "standing beyond" Violet light waves
Infrared radiation is of a much lower frequency (and a longer wavelength) than X-rays.
Infra-red.
Fluorescence is glowing, or giving off light.
Infrared radiation.
Infrared radiation.
Visible Light
It becomes longer
blank = "infra-red"
Infrared is longer.
Infrared radiation has longer wavelengths.
In Electromagnetic radiation when the wavelength increases the energy transmitted by the wave decreases. E=hf where h is a constant and f is the frequency.
Infrared radiation is not visible. Its wavelength is longer than red.
Fluorescent means something is glowing, usually with visible light. Fluorescent means giving off visible (or invisible) radiation as a result of absorbing shorter wavelength radiation.