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A person needs a lens of power -5.5 ...

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 dioptres. What is the focal length of the required for correcting (i) distant vision, and (ii) near vision ?

Text Solution

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The correct Answer is:
(i) - 18.18 cm (ii) + 66.6 cm
NA
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