Answers

2014-11-19T18:00:23+05:30
The visible spectrum is the portion of the electromagnetic spectrum that can be detected by our eyes
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2014-11-19T18:27:22+05:30
The band of wavelength of electromagnetic radiations which lie in the visible light region (450nm to 700nm) is called light spectrum.
It consists of 
Violet
Indiga
Blue
Green
Yellow
Orange 
Red
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