Dear Student
The image formed by a convex mirror is always situated between the pole and the focus,irrespective of the position of the object in front of mirror. Therefore, it's uses are as follows:
1) It is used as rear view mirror in automobiles. This is due to the reason that a convex mirror provides a wider field of view than a plane or concave mirror.
2) It is used as reflector in street lamps so as to diverge light over a large area.
3) It is used as security mirror in shops and on roads at sharp bends and concealed entrances.
4) They are also used inside buildings or any high traffic areas in stores or warehouses at sharp corner as a guide to avoid accidentally running into someone or something.
Regards