a) What is long-sightedness? State the two causes of long-sightedness. With the help of ray diagram, show:i) the eye defect long sightednessii) correction of long-sightedness using a lensb) An eye has a
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What is long sightedness State the two causes of long sightedness With the help of ray diagrams show the eye defect long sightedness correction of long -sightedness by
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