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    Question

    Persons suffering from myopia are advised to use –

    A convex lens Correct Answer Incorrect Answer
    B concave lens Correct Answer Incorrect Answer
    C piano-convex lens Correct Answer Incorrect Answer
    D plano-concave lens Correct Answer Incorrect Answer

    Solution

    A concave lens is used to correct short-sightedness (myopia). In myopia, images are formed in front of the retina, resulting in a blurred image. This occurs when the eye is relatively too long or the refractive powers of the cornea and lens of the eye are relatively too strong.

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