The power of lens in the spectacles of a person is +2D. The person suffers from :
A
Hypermetropia
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B
Myopia
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C
Color blindness
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D
Presbyopia
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Solution
The correct option is A Hypermetropia As power is +2D, therefore focal length is =1P
which is +12m=+50cm so, focal length is positive which is for convex lens and a convex lens is used for correction of hypermetropia. So, the person is suffering from hypermetropia, hence correct option is A.