![]() Here, the red colour’s wavelength is 400 nm, and the violet colour’s wavelength is 700 mm. The white light is composed of 7 colours: violet, indigo, blue, green, yellow, orange and red. The light is not visible above 700 nm and below 400 nm. The wavelength of White Lightīased on the wavelength of light, one can see the visible light. ![]() Other wavelengths such as infrared rays greater than 760 nm wavelength and ultraviolet rays, the wavelength of which is shorter than 380 nm, are often referred to as light. Scientifically, electromagnetic radiation of 380 nm and 760 nm (400–790 terahertz) wavelength is visible to the human eye and is hence known as visible light. ![]() Unfortunately, though, they are not visible to the human eye. The infrared rays are located right beyond the red side of a rainbow, and the ultraviolet rays are present above the purple end. The rainbow represents the optical or a visible portion of the electromagnetic spectrum. The light visible to the naked eye is a small part of the electromagnetic spectrum. The Electromagnetic spectrum ranges from the low frequencies used for standard radio wave communication to gamma radiation at the short-wavelength (high-frequency) end, reaching distances from thousands of kilometres to a fraction of the size of an atom. The electromagnetic spectrum is the phrase that refers to all known electromagnetic radiation frequencies. Some light bulbs, such as incandescent lamps, do not contain white light. As for artificial, white LEDs and fluorescent light bulbs can produce white light. The Sun is the most significant source of white light in our solar system. The Sun and other stars, for example, are generators of white light. White light can be produced by various sources, both in space and artificially on earth. 2 FAQs about White Light Sources of White Light
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