An old person is unable to see clearly nearby objects as well as distant objects. To correct the vision, what kind of lens will be required?

Only concave lens

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Bifocal lens whose upper portion is concave lens and lower portion is convex lens

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Only convex lens

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Bifocal lens whose upper portion is convex lens and lower portion is concave lens

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Solution

The correct option is B Bifocal lens whose upper portion is concave lens and lower portion is convex lens
Bifocal lens with the upper part of a concave lens facilitates the distant vision, while the lower part which consists of a convex lens facilitates the near vision.
So, option $(B)$ is the correct answer.

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Similar questions

Q. Question 14
Which of the following statement is correct?

(a) A person with myopia can see distant objects clearly
(b) A person with hypermetropia can see nearby objects clearly
(c) A person with myopia can see nearby objects clearly
(d) A person with hypermetropia cannot see 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?

Q. A person can not see the distant objects clearly (though he can see the nearby object clearly). He is suffering from the defect of vision called:

A person who can see nearby objects clearly, but cannot see distant objects distinctly is said to be suffering from

Q. If a person can see distant objects clearly, but cannot see nearby objects clearly, then the person is said to be affected from which of the following defects?

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