How far in meters is the blackboard from her eyes

Reference no: EM13506984

a student is reading material written on a blackboard. her contact lenses have a refractive power of 57.50 diopters; the lens to retina distance is 1.750cm.

(a) how far in meters is the blackboard from her eyes?

(b) if the material written on the blackboard is 5cm high. what is the size of the image on her retina?

Reference no: EM13506984

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