it absorbs the ultraviolet radiation and gives out visible light
Phosphor.
The "radioactive" safety symbol warns you that radioactive material or a radiation producing machine is near the symbol and you should take precautions to ensure that you are not unnecessarily exposed to ionizing radiation.
Who doesn't love black light posters? They were popular in the 1970's though they can still be found today. They glow because of the ink used to print them. When the posters are exposed to ultraviolet light that comes from the black lights, it produces a fluorescent glow.
Background radiation.
i have the same question ni99a
Fluorescent material immediately glows when exposed to ultraviolet radiation, that is it fluoresces. Phosphorescent material slowly absorbs and re-emits the radiation it absorbs. This enables phosphorescent material to absorb visible light spectra to "glow in the dark" at a later time.
ultraviolet light
I think it is dangerous in both the cases as each has its own complications.
We protect ourselves from the ultraviolet radiation by staying indoors, covering exposed areas with clothing and using an appropriately rated sunscreen designed for that purpose.
ultraviolet light or radiation of any kind
Phosphor.
No. It depends on the amount of radiation, and it has to be ionizing radiation, which means ultraviolet or shorter waves. Alternatively, non-ionizing radiation can kill by heating the tissues if the energy intensity is high enough.
It is simple the ozone layer pertects some of the ultraviolet radiation that comes from the sun if you are exposed to much of the sun you can get skin cancer that is the danger of ultraviolet radiation
Skin cells do not produce a hat - no matter what kind of radiation falls on them.
Without the ozone layer, the Earth and everything living would be exposed to harmful radiation, which could kill us if we were exposed for too long.
The thermosphere is heated by solar radiation particularly in the far ultraviolet range; much of this is filtered out by the atmosphere's lower layers - but in the these upper regions it is more exposed to this kind of radiation.
The organisms are stained with fluorochromes, and when exposed to ultraviolet, violet, or blue light they become a bright image resulting from the fluorescent light emitted by them. This exposes the capsule.