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(a) What is meant by far point of human ...

(a) What is meant by far point of human eye ?
(b) What is meant by near point of human eye ?

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(a) Far point of a human eye is a point at fathest distance from the eye, at which an object can be seen clearly by the eye.
(b) Near point of human eye is a point at point at shortest distance from the eye at which an object can be seen clearly by the eye.
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