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Chemistry Trivia Quiz

What is the minimum number of photons that must reach the retina each second to produce vision?
20 2 2 × 1092× 103 2× 106

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General Chemistry Online! Chemistry Trivia Quiz

Copyright © 1997-2005 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 07/31/07.URL: http://antoine.frostburg.edu/chem/senese/101/trivia.shtml