A photographer uses his camera, whose lens has a 50 mm focal length, to focus on an
Question:
A photographer uses his camera, whose lens has a 50 mm focal length, to focus on an object 2.0 m away. He then wants to take a picture of an object that is 40 cm away. How far, and in which direction, must the lens move to focus on this second object?
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First we need to figure out the image distance of the first object We can do this by using the thin ...View the full answer
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Related Book For 
College Physics A Strategic Approach
ISBN: 9780321595492
2nd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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