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Fred's eyes are able to focus on things as close as 5.0 cm. Fred holds a...

Fred's eyes are able to focus on things as close as 5.0 cm.
Fred holds a magnifying glass with a focal length of 3.0 cm at a
height of 2.0 cm above a flatworm. (a) Locate the image, and find the magnification. (b) Without the magnifying glass, from what distance would Fred want to view the flatworm to see its details as well as possible? With the magnifying glass? (c) Compute the angular magnification.

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