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What else can I help you with?
What two lights can't we see?
Ultraviolet and infrared wavelengths are invisible to the naked (human) eye. cw: Yes, in general, you can't see light with higher energy than violet or lower than red. On the low end, that energy level starts with infrared. On the high side, that energy level starts with ultraviolet. Between is the visible light spectrum.
How do astronomers use infrared lights?
Astronomers use infrared light to map the dust in between stars.
Why infrared is named as infrared?
This has to do with the electromagnetic spectrum. Whether you know it or not, Gamma-rays, ultraviolet, X-rays, microwaves, visible light, infrared, and radio/tv waves are all the same thing, just in different doses. Infrared literally means "below-red", while ultraviolet means (beyond or above violet, or purple). With fore-said spectrum, visible lights highest frequency color appears to us as purple. At a slightly lower frequency we observe blue, then green, followed by yellow, and eventually red. In between each of these colors we observe intermediate colors like magenta, teal, orange and pink. At a frequency lower than, or below, red, we begin to enter the infrared area of the electromagnetic spectrum. Above purple, we enter the ultraviolet area of the electromagnetic spectrum.
What is an example of ultraviolet waves?
Ultraviolet waves are a type of electromagnetic radiation that are invisible to the human eye. An example of ultraviolet waves is sunlight, which contains UV radiation along with visible light and infrared radiation. UV waves are also used in black lights and UV lamps.
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 ultraviolet lights called?
They are sometimes called "black lights".
What are infrared lights use for?
There are a lot of things that infrared lights are used for, primarily sight enhacements. Just to name a few, infrared lights are used for night vision, thermography, hyperspectral imagery, tracking, and heating.
How do Motion Sensing Lights Work?
Motion sensing lights use a passive system that detects infrared energy. These sensors are known as PIR (passive infrared) detectors or pyroelectric sensors. Human skin averages to be 93 degrees F, which radiates infrared energy in a wavelength that is between 9 and 10 micrometers. The sensors dectect quick movement of objects that radiate between 8 to 12 micrometers of infrared energy.
Do radio waves microwaves and ultraviolet waves all have longer wavelengths than visible lights?
Radio and microwaves are longer than visible light. So are heat (infrared) waves. Ultraviolet waves are shorter than visible light. So are X-rays and gamma rays.
Can dogs see infrared lights?
No, dogs cannot see infrared lights. They can see some colors, but their vision is limited compared to humans.
Can ultraviolet lights aggravate jaundice?
yes
How is ultraviolet used in lights?
Ultraviolet IS light. It comes from the sun. It's why we wear sun screen.
