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Visible light is the only electromagnetic wave that is perceivable by humans. It ranges in wavelength from approximately 400 to 700 nanometers and is the portion of the electromagnetic spectrum that our eyes can detect.
Ultraviolet (UV) radiation, specifically UVA and UVB rays, from the sun can cause sunburn on the skin. UVB rays are typically responsible for sunburn, while UVA rays can contribute to skin damage and aging. It is important to protect the skin from UV radiation by using sunscreen and seeking shade when necessary.
Protection from ultraviolet radiation is what we use sunblock for. UV (ultraviolet) rays have high energy and can damage skin.
The sun's radiation comes as 45 percent visible light. 40 percent infared, and the remainder as Ultraviolet. This is why the Sun is damaging to our eyes as well as skin while giving us the light we need.
A non-example of ultraviolet (UV) radiation is visible light, which is the portion of the electromagnetic spectrum that can be seen by the human eye. While UV radiation lies just beyond the visible spectrum and has shorter wavelengths, visible light has longer wavelengths and does not possess the same energy or effects associated with UV radiation, such as causing sunburn or skin damage. Other non-examples include infrared radiation and radio waves, both of which have longer wavelengths than visible light.