Which of the following statements is FALSE?
1. The object is always placed to the left of the spherical mirror.
2. All distances parallel to principal axis are measured from pole of the mirror.
3. All distances measured to the right of the origin are taken as negative.
4. Distances measured perpendicular to and above the principal axis are taken as positive.

Correct option is B

All distances measured to the right of the origin are taken as negative. The distances that are measured from the origin, of points that lie to its right, are considered positive, and the distances that are measured from the origin, of points that lie to its left, are considered negative.