A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 62.80 diopters, and the lens-to-retina distance is 1.600 centimeter.
(a) Compute how far is the blackboard from her eyes?
m
(b) If the writing on the blackboard is 5.40 centimeter high, determine the size of the image on her retina?
cm