Observe the shadow of your book when it is held a few inches above a table with

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Observe the shadow of your book when it is held a few inches above a table with a small lamp several feet above the book. Why is the shadow somewhat fuzzy at the edges?

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College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

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Question Posted: Apr 18, 2010 09:36 PM

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Observe the shadow of your book when it is held a few inches above a table with

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If you are using an extended light source the gray area at the edge of the shadow is the penumbr...View the full answer

College Physics

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