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Why is a normal eye not able to see clearly the object placedcloser than 25 c/n? The near point of a hypermetropia eye is !m. What is the power of the lens required to correct the defet?Assume that the near point of the normal eye is 25 cm.

Answer»

This is because the ciliary muscles of eyes are unable to contract beyond a certain limit. If the object is placed at a distance less than 25cm from the eye, then the object appears blurred because light rays coming from the object meet beyond the retina.

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