Suppose you are an astronaut orbiting the earth at an altitude of 200 km. The pupils of

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Suppose you are an astronaut orbiting the earth at an altitude of 200 km. The pupils of your eyes are 3 mm in diameter and the average wavelength of the light reaching you from the earth is 500 nm. What is the length of the smallest structure you could make out on the earth with your naked eye, assuming that turbulence in the earth’s atmosphere does not smear out the image?

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The Physical Universe

ISBN: 978-0077862619

16th edition

Authors: Konrad B Krauskopf, Arthur Beiser

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