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Visible Spectrum

We perceive electromagnetic energy having wavelengths in the range 400-700 nm as visible light.

Visible light is a very small part of electromagnetic energy : a narrow frequency band within the electromagnetic spectrum

http://mo-www.harvard.edu/Java/MiniSpectroscopy.html

What we perceive as "light", or different colours, is a narrow frequency band within the electromagnetic spectrum.

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Pascal Vuylsteker / eScience / Computer Science / ANU 		Last modified: 20/4/2004
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