Question

a person uses a lens of power -2.0 D for correcting his near vision he uses a lens of power +1.5 D what is the focal length of the lenses required to correct this disorder​

Answer 1

Answer:

hello

Explanation:

A lens having a power +1.5 D will have a focal length of

P =1/f

+1.5 D = 1/f

f = 1/1.5 = 2/3 = + 0.67 m.

The focal length is + 0.67m.

The nature of lens is converging type or convex lens.

The defect of the eye is Hypertrophy or -farsightedness.

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