Question

How is a spherical mirror used to converge a beam of light

Answer 1

 a beam of light parallel to the principal axis fall on a convex mirror, all the rays after reflection diverge. If the reflected rays are extended backwards, they appear to be metting at a point on the principal axis. It seems that the rays are diverging from that point. This point is called the focus of the convex mirror.

Here the type of the mirror is convex mirror

Answer 2

Answer:

a beam of light parallel to the principle axis fall of on a convex mirror all the rays after reflection diverge . If the reflected ray is extended backwards they appear to be meeting at a point on the principle axis . It seems that the rays are diverging from a point