Bifocals are glasses in which the upper half of the lenses corrects for distant
ID: 1507862 • Letter: B
Question
Bifocals are glasses in which the upper half of the lenses corrects for distant vision and the lower half corrects for close vision. Anna's prescription calls for lenses with -1.0 diopter power in the upper half and +1.0 diopter in the lower half. Find Anna's far point and her near point. Bifocals are glasses in which the upper half of the lenses corrects for distant vision and the lower half corrects for close vision. Anna's prescription calls for lenses with -1.0 diopter power in the upper half and +1.0 diopter in the lower half. Find Anna's far point and her near point. Bifocals are glasses in which the upper half of the lenses corrects for distant vision and the lower half corrects for close vision. Anna's prescription calls for lenses with -1.0 diopter power in the upper half and +1.0 diopter in the lower half. Find Anna's far point and her near point.Explanation / Answer
The far point is,
v=-1/p = 1/(1 m^-1) = m
The near point is,
u==1/p =1 m
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