A nearsighted person requires contacts to see very distant objects. If the persons far point is 61 cm, what focal length should the contacts have to correct their vision? What type of lens will the contacts need to be?
Added by Kristin J.
Step 1
Given that the person's far point is 61 cm, we can use the formula for focal length of a lens: 1/f = 1/do + 1/di where f is the focal length of the lens, do is the object distance (far point), and di is the image distance (distance at which the person can see Show more…
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