A person needs a lens of power -5.5 dioptres for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required for correcting (i) distant vision, and (ii) near vision ?
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For correcting his near vision he needs a lens of power +1.5dioptre. What is the focal length of the lens required for correcting his. (i) distant vision, (ii) near vision. Hence the Person needs a convex lens of 67 cm for his near vision.
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