Draw and explain the image formation in spherical mirrors.

Explanation

The image can be located by graphical construction. To locate the point of an image, a minimum of two rays must meet at that point.
(i) A ray parallel to the principal axis after reflection will pass through or appear to pass through the principle focus. (Figure(a) )

(ii) A ray passing through or appear to pass through the principal focus, after reflection will travel parallel to the principal axis(Figure(b))

(iii) A ray passing through the centre of curvature retraces its path after reflection as it is a case of normal incidence. (Figure(c))

(iv) A ray falling on the pole will get reflected as per law of reflection keeping principal axis as the normal. (Figure(d))