how can, the inward surface of the steel bowl or a spoon acts as a concave mirror, while its outer surface acts as a convex mirror.
The type of spherical mirror in which the reflecting surface is bulged inwards is called concave mirror.
The type of spherical mirror in which the reflecting surface is bulged outwards is called convex mirror.
in spoon both the front and the back parts are shiny so the can act as mirrors.
the part which is bulged inwards act as concave mirror.
the part which is bulged outwards act as convex mirror.