How far is the blackboard from her eyes

Reference no: EM13317801

A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 53.90 diopters, and the lens-to-retina distance is 1.884 cm.

(a) How far is the blackboard from her eyes?

(b) If the writing on the blackboard is 7.10 cm high, what is the height of the image on her retina?

Reference no: EM13317801

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