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    Question

    A rear-view mirror for driving is

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    A plain Correct Answer Incorrect Answer
    B concave Correct Answer Incorrect Answer
    C convex Correct Answer Incorrect Answer
    D inverted Correct Answer Incorrect Answer

    Solution

    The kind of mirror used in the rear-view mirror must be convex mirrors, because it creates smaller, yet still upright images. Concave mirrors would create an inverted image and the cars you see are not upside down. Convex mirrors make everything smaller so this allows the driver to see a greater range of things behind him.

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