Ultraviolet IS light. It comes from the sun. It's why we wear sun screen.
Ultraviolet light.
Xenon gas is used in ultraviolet lights as a filler gas because it helps the lamp reach higher operating temperatures quickly, which is necessary for the efficient production of ultraviolet radiation. Xenon also improves the stability and performance of the lamp by reducing flickering and extending the lifespan of the bulb.
They are sometimes called "black lights".
Ultraviolet light comes from the sun, it is sometimes used in lights- it comes out a purple colour but ends up making things look shiny white!
yes
Sunlight, tanning beds, and certain types of insect zappers are common sources of ultraviolet waves in everyday life. UV lights used for sterilization and counterfeit detection also emit ultraviolet waves.
They are sometimes called "black lights".
Yes and no. Under high-frequency, high-intensity ultraviolet lamps, such as those used in crime investigation, saliva and most other bodily fluids will fluoresce. However, under more common low-frequency ultraviolet lights, such as those used in nightclubs and parties, the glow from saliva is not noticeable.
Black lights do not reveal the presence of germs. They are used to detect certain substances that fluoresce under ultraviolet light, but they do not specifically indicate the presence of germs.
Fluorescent, ultraviolet, neon or mercury lights can be used to attract the insects. As if flies toward the light, it touches the electrically charged metal grid which kills them.
Sources of ultraviolet waves include the sun, tanning beds, black lights, some types of lasers, and certain industrial processes such as welding and mercury vapor lamps. UV lamps used for disinfection and certain medical treatments also emit ultraviolet waves.
UV refers to the "Ultraviolet". Do you mean the ultraviolet LED lights? Or the natural sun light? You could find details at Wikipedia.