Explain the path taken by an incident ray after reflection in each of the following situations:

(a) The ray is parallel to the principal axis and hits a convex mirror.
(b) The ray passes through the principal focus before hitting a concave mirror.
(c) The ray approaches obliquely and strikes the pole of a convex mirror.
 
(a) Whenever an and strikes a convex mirror, it becomes and following laws of reflection from the mirror.
 
(b) Whenever an incoming ray strikes a concave mirror while travelling through its primary focus, it must be .
 
(c) Whenever an incident ray is oblique towards the primary axis and strikes the pole of a convex mirror, it must be .