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visible radiation
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Visible spectrum
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 390 to 700 nm. In terms of frequency, this corresponds to a band in the vicinity of 430–770 THz.
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visible radiation
Noun
1. (physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window"
(synonym) light, visible light
(hypernym) actinic radiation, actinic ray
(hyponym) beam, beam of light, light beam, ray, ray of light, shaft, shaft of light, irradiation
(part-holonym) electromagnetic spectrum
(classification) physics, physical science, natural philosophy
