Physics, 06.08.2019 16:10 emilyy4757
Sometimes a person cannot clearly see objects close up or far away. to correct this type of vision, bifocals are often used. the top half of the lens is used to view distant objects and the bottom half of the lens is used to view objects close to the eye. a person can clearly see objects only if they are located between 45 cm and 161 cm away from her eyes. bifocal lenses are used to correct her vision. what power lens (in diopters) should be used in the top half of the lens to allow her to clearly see distant objects?
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Sometimes a person cannot clearly see objects close up or far away. to correct this type of vision,...
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