The mirror that we see on the side of a car, which the driver uses to see the image of vehicles
behind him are convex mirrors. They are used as rear view mirror because they always form erect image, not inverted.
But the disadvantage is that the image is smaller than the object.
Since they are curved in a manner bulging outwards, they have a larger field of view than the concave type. Some super markets have now installed large convex mirrors at the turning so that two customers don’t collide.
Also, Read Spherical Mirror class 10 notes