A tungsten lightbulb puts out 20 W of radiant energy (most of it IR). Assume it to

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A tungsten lightbulb puts out 20 W of radiant energy (most of it IR). Assume it to be a point source and calculate the irradiance 1.00m away.

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Optics

ISBN: 978-0133977226

5th edition

Authors: Eugene Hecht

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Question Posted: Jan 03, 2019 05:23 AM

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A tungsten lightbulb puts out 20 W of radiant energy (most of it IR). Assume it to

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Optics

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