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Ultraviolet radiation has a wavelength between 10 and 400 nanometers. The shorter the wavelength, the more energy each photon contains. To find the frequency, divide the speed of light (299,792,458 metets per second) by the wavelength.
A typical human eye will respond to wavelengths from about 390-750nm. In terms of frequency, this corresponds to a band in the vicinity of 400-790 THz. Bees and many other insects can see light in the ultraviolet, which helps them find nectar in flowers. Plant species that depend on insect pollination may owe reproductive success to their appearance in ultraviolet light, rather than how colorful they appear to humans. Birds too can see into the ultraviolet (300-400 nm), and some have sex-dependent markings on their plumage, which are only visible in the ultraviolet range. this is from the wikipedia article on visible light in the electromagnetic spectrum
When light travels through a medium speed of light decreases. So we could find out some medium which can stop a light ray.
Wavelength times frequency is the speed. To know the wavelength, you have to divide the speed by the frequency of the light.
I wish somebody would put this answer up so I could find it easily:(
UV refers to the "Ultraviolet". Do you mean the ultraviolet LED lights? Or the natural sun light? You could find details at Wikipedia.
UV refers to the "Ultraviolet". Do you mean the ultraviolet LED lights? Or the natural sun light? You could find details at Wikipedia.
Some insects use ultraviolet waves to find nectar. The ultraviolet light leaves marks on flowers, and the insects can sense them and find the nearby nectar.
UltraViolet
ultraviolet light can be used to find fingerprints and hidden blood
It can be used for helping insects find plants, and medical scanning.
There are many things you can use it for. If u have children can make a LED Christmas tree. Just type it into Google. Also ultraviolet LEDs are used to find scorpians as they light up under the light.
you could maybe go to a mine in Sud-bury..
They most certainly do! A dual wavelenght mineral light is a sure way to easily find them. They light up bright green.
Ultraviolet radiation has a wavelength between 10 and 400 nanometers. The shorter the wavelength, the more energy each photon contains. To find the frequency, divide the speed of light (299,792,458 metets per second) by the wavelength.
A rough determination of the value could be made by looking at similar samples on mineral dealer websites or mineral auction websites.
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