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May 24, 2015

Homework Help: college physics

Posted by crystal on Monday, September 19, 2011 at 9:05pm.

A certain person's eye measures 24.0 mm from the pupil to retina.
(a) If we treat the eye's lens as a thin lens, what is its focal length when the person focuses on a pencil 44.3 cm from the eye?
(b) While the person focuses on the pencil, what is the image distance for a wall 426 cm from the eye?

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