Visible light: Difference between revisions
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The [[electromagnetic spectrum|electromagnetic spectrum]] is the range of [[frequency|frequencies]] of [[electromagnetic radiation|electromagnetic radiation]] and their respective [[wavelengths|wavelengths]] and [[photon|photon]] energies. It ranges from frequencies below 1 Hz to frequencies above 10<sup>25 </sup>Hz, corresponding to wavelengths from 100 Mm to 1 pm<ref>https://en.wikipedia.org/wiki/Electromagnetic_spectrum</ref>. Light is a part of the electromagnetic radiation spectrum and is only visible to [[humans|humans]] when its wavelength ranges from approximately 400 nm (violet) to 700 nm (red). Different wavelengths of light will produce different visible colours<ref>https://www.thoughtco.com/the-visible-light-spectrum-2699036</ref>. | |||
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Latest revision as of 08:59, 21 October 2018
The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies. It ranges from frequencies below 1 Hz to frequencies above 1025 Hz, corresponding to wavelengths from 100 Mm to 1 pm[1]. Light is a part of the electromagnetic radiation spectrum and is only visible to humans when its wavelength ranges from approximately 400 nm (violet) to 700 nm (red). Different wavelengths of light will produce different visible colours[2].