convenient store and malls mounts a convex mirror in the corner of the store to serve as a security mirror and reduce the frequency of five-finger discounts.And also Convex mirrors is used for security purposes in shopping centers because Convex mirror have a larger field of view and hence larger area could be kept under surveillance from a single mirror as compared to a concave mirror. And also Convex mirror forms diminished images , so many objects can be seen at the same time .