A person’s near point is and his far point is . Power of the lenses he requires for (i) reading and (ii) for seeing distant stars are |
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a) |
and |
b) |
and |
c) |
and |
d) |
and |
A person’s near point is and his far point is . Power of the lenses he requires for (i) reading and (ii) for seeing distant stars are |
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a) |
and |
b) |
and |
c) |
and |
d) |
and |
(b) For correcting the near point, required focal length So power For correcting the far point, required focal length (defected far point) |