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QUESTION
G to correct myopia, concave lenses are prescribed. if a student can read her physics book only when she holds it no farther than 18 cm away, what focal length of lens should be prescribed so she can
G to correct myopia, concave lenses are prescribed. if a student can read her physics book only when she holds it no farther than 18 cm away, what focal length of lens should be prescribed so she can read when she holds the book 35 cm away?
