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    Question

    Which type of mirror is used as a rear-view mirror in

    vehicles and why?
    A Concave mirror, because it always forms erect images Correct Answer Incorrect Answer
    B Concave mirror, because it produces magnified images Correct Answer Incorrect Answer
    C Plane mirror, because it forms images of same size Correct Answer Incorrect Answer
    D Convex mirror, because it gives a wider field of view Correct Answer Incorrect Answer

    Solution

    A convex mirror is indeed used as a rear-view mirror in vehicles, and the main reason is its ability to provide a wider field of view. Because the reflecting surface bulges outward, rays of light diverge after reflection, and the image formed appears diminished but covers a larger area behind the vehicle. 

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