1. Convex mirrors used in vehicles as rear – view mirrors are labeled with the safety warning: ‘Objects in the mirror are closer than they appear’ to warn the drivers. This is because inside the mirrors, vehicles will appear to be coming at a long distance.
2. Convex mirrors form erect and smaller images of the objects.
3. This does not give us the exact idea how far the vehicle is from us.
4. Thus, to avoid accidents, car view mirrors carry a warning message.