A spy camera is said to be able to read the numbers on a car's license plate.

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A spy camera is said to be able to read the numbers on a car's license plate. If the numbers on the plate are 5.5 cm apart, and the spy satellite is at an altitude of 180 km, what must be the diameter of the camera's aperture? (Assume light with a wavelength of 550 nm.)
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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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