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What is the wavelength of white light?

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White light is not a color, its'a combination of all colors, the same as black is the absence of all colors. Therefore it cannot be assigned a single wavelength. White light contains all wavelengths from about 390 nm to 700 nm. read more

White light is not a color, its'a combination of all colors, the same as black is the absence of all colors. Therefore it cannot be assigned a single wavelength. White light contains all wavelengths from about 390 nm to 700 nm. read more

You may sometimes hear the term "white noise" which means that the noise at every frequency (or wavelength) is the same. Similarly, we give the name "white light" to a set of wavelengths that have the same intensity over a given wavelength range (most often the visible wavelengths). read more

What we see as white light is in fact a mixture of light of different wavelengths. We see light with wavelengths in the range 390nm - 700nm or so. Each specific wavelength corresponds to a pure colour ranging from violet to red. White light is a mixture of colours. read more

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