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Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV. It is so named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet.
UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. As an ionizing radiation it can cause chemical reactions, and causes many substances to glow or fluoresce. Most people are aware of the effects of UV through the painful condition of sunburn or the looks of tanning, but the UV spectrum has many other effects, both beneficial and damaging, on human health.
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What is an example of a sentence using the word penetrate?
I am often amazed at how fanatically the football game's announcers point up how easy it is for the defensive players to penetrate the offensive line. The ink will easily penetrate the cloth.
What prevents the sun's ultraviolet rays from penetrating the interior of the body?
Ultraviolet rays are very short wavelength waves above even the blue waves in the electromagnetic spectrum. They are responsible for sunburns on the skin, but are stopped by the skin. When compared with the longer infrared (heat)waves below the red waves in the same spectrum which can easily penetrate the skin and physically cook the entire body given sufficient time.
How would you use ultraviolet in a sentence?
The ultraviolet light of the sun will give you good color, but too much exposure can be dangerous.
What is the ultraviolet glow called?
Qwerty
If ultraviolet light has little penetrating power what will it produce?
yes, it will. But, the ozone layer will pretect us fron ultaviolet rays. PS. Ultraviolet rays come from the Sun!!
How is sunshine made?
Heated subatomic hydrogen particles and ultraviolet rays from the sun penetrate the earths atmosphere.
How do you use ultraviolet waves in a sentence?
You may experience sunburned skin if you allow your skin to be exposed to the ultraviolet waves that penetrate the clouds on a cloudy day. Ultraviolet waves are at the opposite end of the visible light spectrum from infrared waves. Ultraviolet (UV) waves are longer than X-rays.
What waves of radiation have more energy than waves of radiation that you can see?
Ultraviolet light, x-rays, and gamma rays carry more energy than visible light. (That's why ultraviolet light does nasty things to skin cells, and x-rays and gamma rays can penetrate solids.)
Why ultraviolet light would be more likely than visible or infrared light to cause cancer by damaging DNA molecules?
UV rays can penetrate the cell membrane
Is it true that ultraviolet light carries more energy than infrad radiation?
im 75% positive that it does penetrate deeper than infrared radiation.
Is uv radiation harmful?
UV radiation is very harmful in many ways, first off they are invisible rays that come from the sun, UV radiation is made of ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC). These rays burn skin and cause cancer. UVB and UVC penetrate the ozone layer. UVA and UVB cause skin cancer, for this reason, sunscreens are recommended that block UVA and UVB.
How so solar flares and their related of x-rays and ultraviolet light affect us on earth?
solar flares along with heat eject large no. of electrons due to this wave of electrons -waves of magnetism are produces which affect not only atmosphere but may also penetrate ozone layer and can affect our electronic appliances . x-rays and ultraviolet rays are high energy rays and if they penetrate the atmosphere and come in contact with human skin or animals can cause cancer and several mutations in humans.
Why does x rays light get farther into your bodies than ultraviolet?
Xrays have smaller wavelengths, and can only been seen from the shadows it makes on xray paper. X-rays have a shorter wavelength than ultraviolet, thus making them smaller photons, hard x-radiation has a wavelength around .01 nanometers and ultraviolet has a wavelength around 10 nanometers at the shortest wavelength. This means it is easier for the smaller x-rays to penetrate the human body than ultraviolet wavelengths. 1000 nanometers = 1 micron, 1000000 microns = 1 millimeter
How do use the word penetrate in a sentence?
We need to penetrate their defences.The needle will penetrate his skin.
Do the sun's tanning rays penetrate water and to what degree?
All the sun's rays penetrate water, but each color penetrates to a different depth. The colors at the upper end of the light spectrum, especially the UV (ultraviolet) that causes tanning, penetrate deepest. The UV portion of the sun's light can penetrate into clear water for a hundred feet or more at midday. The safest way to avoid overexposure is to remember that if you can see the sunlight, it may cause sunburn, and to limit exposure accordingly or perhaps wear a T-shirt or wet-suit.
Why do you not get sunburned under your clothes but in an X-ray you can get damage under your clothes?
The ultraviolet radiation that causes sunburn is blocked by our clothing, whereas X-Rays can penetrate our clothes and our tissues. That is how X-Rays are used to make images of internal organs and bones.
Which has the higher frequencies ultraviolet or infrared?
Ultraviolet
