An Analysis of the Light Emitting Diode Display in Technological Advancement (275 words, 2 pages)
Wavelength 3.5 10-7m to 7.5 10-7m Sources Very hot bodies (progressively red-hot, yellow-hot and then white-hot),discharge lamps (eg, most bulbs), phosphorence and fluorescence of other typesof electromagnetic radiation into visible light. Detection Photographic plates, photocells, the human eye. Uses Cathode ray tubes, which emit light, are used for televisions, computermonitors ...
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