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Every single person. Our bodies use ultraviolet light in the creation of certain vitamins.
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∙ 12y ago
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What are use of ultraviolet light?
you can use ultraviolet in bug zappers, identifying money, in sun beds and many others:
How many ultraviolet rays are there?
How many ultraviolet rays are there?
How do you see ultraviolet waves?
Ultraviolet light is not visible. Many ultraviolet lamps also emit some visible light along with the ultraviolet, typically visible violet. Also, ultraviolet light is an ionizing radiation, and will cause some flourescent materials to emit various visible wavelengths of light.
What is ultra violet used for?
ultraviolet light, or UV light, is a type of electromagnetic radiation that has a wavelength somewhere between visible light and X-rays. It is widely used throughout the world, in everything from production of usable electricity (the sun's rays are ultraviolet) to the many common uses for a simple black light. Sun Tanning All sun tanning beds use ultraviolet lights in order to simulate the effects of sunlight against bare skin. Just like real sun bathing, people who use tanning beds run the risk of developing sunburn. Hunting Many hunters will use an ultraviolet light, such as a black light, to locate and follow a wounded animal. This is done by shining the light on the ground and following the illuminated blood trail. Forensics Forensic scientists will also use ultraviolet lights to look for clues at a crime scene. CD/DVD Players CD and DVD players use lasers, which are a form of ultraviolet light, to read information off of the disc. Security To fight counterfeiting, many government or otherwise sensitive documents will have some sort of ultraviolet verification. In other words, if you shined a black light over a $20 bill, you would see markings on an authentic bill that you wouldn't find on a fake. enjoy................................................ dear..............
Can humans see visible light?
Ultraviolet light is invisible to the human eye. UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. It can cause chemical reactions, and causes many substances to glow or fluoresce. Most ultraviolet is classified as non-ionizing radiation.
When an astronomer says she is going to study light how many different types of light can she study?
All the types on the electromagnetic spectrum (e.g. infrared, ultraviolet, visible, radio, etc.)
What are the effects of infrared light on the fermentation of yeast?
Most of the time, Ultraviolet radiation will kill or badly hurt most yeasts. As there are so many different kind of yeasts, each different kind of yeast will have a different reaction to this kind of light. There are also certain mutations that may cause yeast to be ultraviolet light sensitive or resistant.
What property of light does a laser show clearly?
now lasers can produce many different colors, as well as well as infrared and ultraviolet radiation.
What is effect of flash flood?
many people will effect
What is the effect of flash flood?
many people will effect
What is Ultraviolet lights?
Ultraviolet light (UV light) is light of shorter wavelength than the visible spectrum. Many insects, like bees, see mostly UV light so they can find plants with nectar. Sunlight contains UV light and can tan but also damage your skin if you stay outside too long on a sunny day.Answer:Visible light is electromagnet radiation of different frequencies. The different frequencies are the different colors. Just outside the range of frequencies (colors) humans can see are infrared and ultraviolet. Ultraviolet is higher frequency and infrared is lower.Note: Higher frequencies are shorter wavelengths and lower frequencies are longer wavelengths.Visible light is electromagnet radiation of different frequencies. The different frequencies are the different colors. Just outside the range of frequencies (colors) humans can see are infrared and ultraviolet. Ultraviolet is higher and infrared is lower
What are cataracts made of?
A cataract is caused by an opacity of the crystalline lens. The lens becomes cloudy and will not allow proper light to transmit through it. It is like having a dirty windshield. You won't see any better, until you have it surgically removed. Many people believe that cataracts are caused by exposure to ultraviolet light. That is why most people in the coastal regions have a higher tendency to have cataracts- they are outside more often. And usually cataracts are found in older adults- because their eyes have been exposed to the ultraviolet light for a number of years. But cataracts cal also be caused by other things, not just ultraviolet light. An annual dilated eye exam should be performed by an Optometrist or Ophthalmologist to check for refractive errors and any diseases or problems with the eye.
