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In case of hypermetropia a convex lens is used
the near point = focal length of lens = 0.25
Power of lens =?
Power (D) = 1/f
=1/0.25
=4D
therefore the power of the lens =4D=4 dioptre
the near point = focal length of lens = 0.25
Power of lens =?
Power (D) = 1/f
=1/0.25
=4D
therefore the power of the lens =4D=4 dioptre
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