Which is true for the far sightedness or hypermetropia from the following?

Eye lens does not became thin as per requirement

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Distant object cannot be seen clearly.

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Nearby object cannot be seen clearly.

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Defect can be corrected by using concave lens.

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Solution

The correct option is C Nearby object cannot be seen clearly.

In this defect, the eye can't see the nearby objects as the lens can't focus the image on the retina but focuses the image beyond the retina.

This defect of the eye is called $f a r - s i g h t e d n e s s$ or $h y p e r m e t r o p i a$ as the eye in this defect can't see the nearby objects clearly but can see far-off objects.

Answer-(C)

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Similar questions

Q. Match the columns in the following table and explain them.

Column 1	Column 2	Column 3
Farsightedness	Nearby object can be seen clearly	Bifocal lens
Presbyopia	Far away object can be seen clearly	Concave lens
Nearsightedness	Problem of old age	Concave lens

Q. Complete the following sentences :
(a) A short-sighted person cannot see .............. objects clearly. Short-sightedness can be corrected by using ............... lenses.
(b) A long-sighted person cannot see ............... objects clearly. Long-sightedness can be corrected by using .............. lenses.

An optician used concave lens to correct the defect of eye so that the customer can see clearly. Which defect of vision could it be?

Q. Short-sightedness means that the eye can see the nearby objects clearly and long-sightedness means that the eye can see the distant objects clearly.

Man A has a defect of vision due to which he cannot see the nearby objects clearly (through he can see the distant objects clearly). On the other hand, man B has a defect of vision due to which he cannot see the distant objects clearly (though he can see the nearby objects clearly). The defect in man A can be corrected by using spectacles containing lenses C whereas the defect in man B can be corrected by using spectacles containing lenses D.
(a) Name the defect of vision in man (i) A and (ii) B.
(b) What type of lenses are (i) C and (ii) D?

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