Fill in the following blanks with suitable words:
a) Parallel rays of light are reflected by a concave mirror to a point called the ……..
b) The focal length of a concave mirror is the distance from the ……… to the mirror.
>c) A concave mirror ….. rays of light whereas a convex mirror ……. rays of light.
d) For a concave mirror, parallel rays of light appear to diverge from a point called the ……