What must the power of the lens be

Reference no: EM132112581

Question: Suppose the distance from the lens system of the eye (cornea +lens) to the retina is 13 mm.

(a) What must the power of the lens be whenlooking at distant objects? D

(b) What must the power of the lens be when looking at an object20.0 cm from the eye? D

(c) Suppose that the eye is farsighted; the person cannot seeclearly objects that are closer than 1.0m. Find the power of the contact lens you would prescribe so thatobjects as close as 20.0 cm can be seenclearly. D

Reference no: EM132112581

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