Question

A person is suggested to use a lens of focal length-20cm with which defect he suffers and has to take the power of lens is

Answer 1

Explanation:

Correct option is

A

Hypermetropia

As power is +2D, therefore focal length is =

P

1

which is +

2

1

m=+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.

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Answer 2

Answer:

correct anawer is hypermetropia