a person needs a lens of power -5.5 dioptres for correcting her distant vision.for correcting his near vision he needs a power pf lens +1.5 dioptre.what is the focal length of lens required for correcting.(1) distant vision,and (2) near vision.
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heyaa,,,
we know that p=1/f
-5.5=1/f
f=10/55cm
we know that p=1/f
-5.5=1/f
f=10/55cm
nilabh3:
10/-55
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