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UV rays are electromagnetic waves have shorter wavelength than that of visible light(10nm to 400nm)
It can cause chemical changes, hence causes many substance to glow
It is non ionizing radiation
It can cause damage to living beings(harmful to humans) and is blocked by ozone layer
It may leads to cancer
It produces heat in surface of earth
Used to prevent counterfeiting
UV rays are used for wireless communication also
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In a battery using device the current would flow from the Negitive end through say a led light then find its way to the Positive end of the battery completing the transition?
NO. By tradition and usage : current flows from positive to negative. In reality : electrons flow from negative to positive.
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 wavelength of ultraviolet light offers the strongest germicidal effciency?
short wavelength
How long does ultraviolet light take to kill bacteria?
It takes 5 minutes.
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!!
