Difference between revisions of "Visible light"
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(New page: Visible portion is that portion of the electromagnetic spectrum which is detectable by the human eye. The sun emits "white" light, which is all visible colors, but which is only a smal...) |
Aulis Eskola (talk | contribs) (contains colors, wavelength (not energy) is 390..780nm) |
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| − | Visible portion is that portion of the [[electromagnetic spectrum]] which is detectable by the human eye. The sun emits "white" light, which | + | Visible portion is that portion of the [[electromagnetic spectrum]] which is detectable by the human eye. The sun emits "white" light, which contains all visible colors, but which is only a small part of the entire electromagnetic spectrum. |
| − | + | Wavelength of visible light is in the range of approximately 3900 to 7800 [[Angstrom]]s, where one Angstrom is 0.0000000001 meters (1×10<sup>−10</sup> m). The visible spectrum<ref>http://science.nasa.gov/newhome/help/glossfig1.htm</ref> is most obvious in a rainbow, when the sun's different colors of light are bent (refracted) by the earth's atmosphere during a rainstorm. | |
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 03:02, June 2, 2007
Visible portion is that portion of the electromagnetic spectrum which is detectable by the human eye. The sun emits "white" light, which contains all visible colors, but which is only a small part of the entire electromagnetic spectrum.
Wavelength of visible light is in the range of approximately 3900 to 7800 Angstroms, where one Angstrom is 0.0000000001 meters (1×10−10 m). The visible spectrum[1] is most obvious in a rainbow, when the sun's different colors of light are bent (refracted) by the earth's atmosphere during a rainstorm.