A convex mirror makes objects appear further away than they actually are. This is because convex mirrors curve outward, causing light rays to diverge or spread out. When light rays diverge, the image formed is smaller and appears to be located behind the mirror. This smaller image gives the impression that the object is further away than its actual distance.
Convex mirrors are commonly used in situations where a wide field of view is needed, such as in vehicle side mirrors or security mirrors in stores. The ability to make objects appear further away helps in providing a broader perspective and enhancing safety by allowing drivers or security personnel to see more of their surroundings.