A myopic girl wears eyeglasses that allow her to have clear distant vision.The power of the lenses of her eyeglasses is - 3.00 diopters.Without eyeglasses,the far point of the girl is closest to:
A)0.33 m
B)0.25 m
C)0.17 m
D)0.42 m
E)0.50 m

Question

Quizplus · Accepted Answer

The power of the lens (P) is given by P = 1/f, where f is the focal length in meters. For a power of -3.00 diopters, f = -1/3.00 = -0.33 meters. The far point is the distance at which the eye can see clearly without glasses, which is the focal length of the corrective lens.

A Myopic Girl Wears Eyeglasses That Allow Her to Have