Because Concave Mirror converges Light and if object is placed between the principal focus of concave mirror and its pole , it shows a enlarged, virtual and erect image of object. that's why dentists use concave mirror ... hope this will surely help you..
concave mirror shows the image real and magnified........when a dentist uses a concave mirror, he/she places the mirror such that the teeth falls on the focus of the mirror due to which the wound can be easily detected and can be treated as per its treatment
plano concave
It uses a concave mirror in order for the light to be concentrated to point forward.
a concave mirror
convex mirror
A reflecting telescope.
A film artist typically uses a concave mirror when applying make-up. The reason for this is that a concave mirror produces an erect, virtual and highly magnified image.
no concave mirror is in shape of concave mirror
why do we use concave mirror as converging mirror
Your question makes no sense
Concave
Not sure about mirrors but convex and concave lenses are used to treat conditions such as long/short sightedness.