The intensity I of light decreases from its value I 0 as it passes a distance x

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The intensity I of light decreases from its value I0 as it passes a distance x through a medium. Given that x = k(ln I0 − ln I),  where k is a constant depending on the medium, find x for I = 0.850I0 and k = 5.00cm.

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Basic Technical Mathematics

ISBN: 9780137529896

12th Edition

Authors: Allyn J. Washington, Richard Evans

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