February 23, 2017

Homework Help: Physics

Posted by please help on Sunday, March 24, 2013 at 1:17am.

A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 59.82 diopters, and the lens-to-retina distance is 1.686 cm. (a) How far is the blackboard from her eyes? (b) If the writing on the blackboard is 4.81 cm high, what is the height of the image on her retina?

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