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Definition of Health

A person with...

Question

A person with the defect of vision called Myopia needs a lens to correct this defect. The type of lens will be -

A

Convex

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B

Plane

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C

Concave

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D

None of these

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Solution

The correct option is C Concave
Concave lens is used to correct Myopia defect of vision.

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Similar questions

Q. You know that myopia is a common refractive defect of vision. Person with this defect can see only nearby objects. Using concave lens of suitable power this defect is corrected.
(a) Mention other two types of defects like this.
(b) Explain how we can correct it.

Q. To read a poster on a wall, a person with defective vision needs to stand at a distance of

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from the poster. A person with normal vision can read the poster from a distance of

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. Which one of the following lens may be used to correct the defective vision?

Q. A person needs a lens of power +2 dioptres for correcting his near vision. What is the focal length of the lens required to correct the defect?

Q. Due to gradual weakening of ciliary muscles and diminishing flexibility of the lens a certain defect of vision arises. Write the name of this defect . Name the type of lens required by such persons to remove the vision. Explain the structure and function of such a lens.

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