If you want to see an enlarged image of your face, state whether you will use a concave mirror or a convex mirror?
To see an enlarged image of our face, we use a concave mirror, because when an object is extremely close to a concave mirror, it forms a virtual, erect, and enlarged image. Whereas, a convex mirror always forms a virtual, erect, and diminished image.
Explanation
When an object is placed between the pole $P$ and the focus $P$ of a concave mirror, the image formed is virtual, erect, magnified, or enlarged and behind the mirror. The ray diagram is illustrated as follows:
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