Though we have a plane mirror, convex mirror, and many more varieties of mirror, why only concave? Any gadget that uses concave mirrors becomes extremely sensitive as a result of this.
When you use a plane mirror, you will find that the size of the image generated by it will be the same as the actual size of the image.
This is merely the point where all light from the top of the object would intersect upon reflecting off the mirror.
Well, various objects that we see around like vehicle headlights, Shaving mirrors, Solar furnaces, Searchlights, torches, flashlights, and so on.