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    Question

    Which one of the following is used to remove

    Astigmatism for a human eye?
    A Concave lens Correct Answer Incorrect Answer
    B Convex lens Correct Answer Incorrect Answer
    C Cylindrical lens Correct Answer Incorrect Answer
    D Prismatic lens Correct Answer Incorrect Answer

    Solution

    cylindricallens is a lens which focuses light into a line instead of a point, as a spherical lens would.

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