In the given figure below, AB is the object and CD is its image. If a spherical mirror is used to get the image, name the type of spherical mirror used and locate the position of focus of the mirror by drawing a ray diagram. 'P' is the pole of the mirror.

Explanation

(i) Rules for the ray diagrams
(ii) Observe the position of the object and the type of image formed.
Recall the nature of image formed by different mirrors.
Which mirror is used here-concave mirror or convex mirror?
Draw the ray diagram to obtain the type of image shown in the question. Compare this ray diagram with the given figure and analyze to locate the position of the principal focus.