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    Question

    A concave lens always forms an image which is

    –
    A Real and erect Correct Answer Incorrect Answer
    B Virtual and erect Correct Answer Incorrect Answer
    C Real and inverted Correct Answer Incorrect Answer
    D Virtual and inverted Correct Answer Incorrect Answer

    Solution

    Concave lens possesses at least one surface that curves inwards. It is a diverging lens, spreading out those light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia). After light rays have passed through the lens, they appear to come from a point called the principal focus. The image formed by a concave lens is virtual, upright, and smaller than the object, and it cannot be projected onto a screen.

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