Because that's the name we have given to the electromagnetic radiation
at the end of the spectrum with the longest waves.
It's not. The wavelengths of microwaves and other radio waves
are longer than that of infrared radiation.
Yes.
Infrared radiation is not visible. Its wavelength is longer than red.
IR
Infrared has a smaller wavelength than microwaves.
Infrared Light has a longer wavelength than visible and a shorter wavelength than microwaves.
Infrared waves are shorter than radio waves and longer than visible light waves.
Infrared radiation has longer wavelengths.
Infrared radiation.
Visible Light
Both are examples of electromagnetic radiation. Infrared has a longer wavelength (lower frequency) than visible light. Of course visible light is visible to humans and infrared is not (although long wave Infrared is sensible to humans as heat).
Infrared radiation.
Infrared radiation is not visible. Its wavelength is longer than red.
Infrared is longer.
It is electromagnetic radiation whose wavelength is longer than that of visible light.
"UV" (ultra-violet) is radiation with shorter wavelength/higher frequency than visible. Infrared is radiation with longer wavelength/lower frequency than visible.
Infra-red radiation has a wavelength adjacent to but longer than visible light.
Infrared has a longer wavelength, and a lower frequency, than visible light.
I have no clue Laugh out loud