Question

How will a light ray get reflected when incident along:
a) the principle axis of a concave mirror
b) the focus of a convex mirror

Answer 1

Explanation:

• The reflected ray will go back along the principal axis only
• The ray along the foucus will reflect parralel to the principal axis
• hope it helped u

Answer 2

Explanation:

Any ray travelling parallel to the principal axis in case of concave mirror is supposed to pass through principal focus after being reflected from mirror surface .However a ray of light parallel to principal axis and coincident with it intersects mirror surface at pole and just retraces it's path after reflection therefore satisfying the condition of being parallel to principal axis as well as being reflected at pole of mirror.