A convex mirror is used to look under a vehicle during security check because it provides a wider field of view and the images formed are virtual but smaller and upright. The correct option among all the options that are given in the question is the third option or option "C". I hope it helps you.
convex mirror is used to look under a vehicle during a security check because it provides a wider field of view and the images formed are virtual but smaller and upright.
As the image of convex mirror provides rear view in a small frame.
i.e. the images formed by convex mirror are virtual and as it covers wider range, the image is smaller than real but upright.
