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    Question

    Which lens is used to correct myopia

    (shortsightedness)?┬а┬а
    A Convex lens Correct Answer Incorrect Answer
    B Concave lens Correct Answer Incorrect Answer
    C Cylindrical lens Correct Answer Incorrect Answer
    D Plane lens Correct Answer Incorrect Answer

    Solution

    Myopia causes distant objects to appear blurred.┬а┬а Concave lenses diverge light rays, helping the eye to focus correctly.┬а┬а They are thinner at the center than at edges.┬а┬а Power of such lens is measured in negative diopters.

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