How it help to catch shoplifters with convex mirror in big shopping malls
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Convex mirror forms a virtual demagnified image for the objects (it can easily be confirmed by a simple ray diagram). The demagnified image implies that effective field of view is larger / wider.
Thus, observer (security personnel) can scan larger area even through a small mirror.
In addition, for the same reasons, these mirrors are good to avoid any accident around the corners as well.
Thus, observer (security personnel) can scan larger area even through a small mirror.
In addition, for the same reasons, these mirrors are good to avoid any accident around the corners as well.
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