A concave mirror has a surface that curves inward like a bowl. When parallel light rays approach a curved surface and strike at different points on the curve, each ray will reflect at a slightly different direction :) Hope this answers your question
no concave mirror is in shape of concave mirror
yes concave is like a cave
Not much except concave mirror reflects and concentrate the light and lens let trough and distorts the light "concave -the inner surface of a sphere." defines the shape of the lens or mirror
From the point of view of the viewer, it is concave.
why do we use concave mirror as converging mirror
The concave shape focuses the light into a narrow beam. If the mirror was convex, the light would be spread out - useless for searching into any distance.
concave
Imagine if you cut a mirror shaped like a ball in half. The inside half is the concave mirror, and the outside half is a convex mirror.
Concave
Inner curved surface is known as concave mirror because inner side of the spherical mirror is polished to reflect the light is called concave mirror,and concave mirror is know because concave mirror converges parallel beam of light.
A concave mirror bulges away from the incident light. The image of an object depends on where exactly the object is placed - relative the to focal length of the mirror. See the attached link for more details.
Such a mirror is concave.