a person with a myopic eye cannot see objects beyond 1.2 distinctly. what should be the type of the corrective lens used to restore proper vision?
solve this question mathematically and draw Ray diagram for this?
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The distance of far point x = 1.2m
To view distant objects, concave lens of focal length -1.2 should be used.
i.e. f = -x = -1.2m
Power of lens = 1/f = 1/(-1.2m) = -0.83D
To correct this defect of vision, he must use a concave lens. The concave lens will bring the image back to the retina
To view distant objects, concave lens of focal length -1.2 should be used.
i.e. f = -x = -1.2m
Power of lens = 1/f = 1/(-1.2m) = -0.83D
To correct this defect of vision, he must use a concave lens. The concave lens will bring the image back to the retina
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