A mirror is made out of glass.
Since light doesn't travel through a mirror, it is opaque.
On the back of a mirror is a thin layer of silver or chrome which is the reflecting surface. Behind this is backing which keeps the silver in place and keeps it from oxidizing.
mirror
A Mirror that is flat is a duplex mirror.
Its called a Convex Mirror
Convex mirror
Convex mirror
The focal length for a mirror is determined by the law of reflection from the mirror surface. This law is not governed by the material that the mirror is made by. This means that the focal length depends only on the radius and curvature. Conversely, the focal length of a lens depends on the indices of refraction of the lens meterial and the surrounding medium.
It's just a normal mirror scientifically known as a "plane mirror".
Cancave mirror is the type of mirror that has minimum field of view for same aperture.
convex mirror
A concave mirror.
Mirror roll, or mirror on a roll, is a rolled sheet of reflective material. It is usually self-adhesive on one side and can be cut and placed to create a mirror anywhere.
The only type of mirror that I know of is the glass one.