Describe the meaning of WAVELENTH of light。
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Visible light is known to have wavelengths in the range of 400 to 700 nanometres (nm), or 4.00 × 10-7 to 7.00 × 10-7 m, which is between infrared which has longer wavelengths and ultraviolet which has shorter wavelengths. The wavelength of visible light implies it has a frequency of roughly 430 to 750 terahertz (THz).
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light is a beam of photons... and the length of each light particle(photon) is called wavelength... every different coloured light have different wavelength because their photons are different
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