Question

Identify the incorrect statement.
A. All distances parallel to the principal axis are measured from the centre of curvature of the mirror.
B. Distances measured vertically downwards from the principal axis are taken to be negative.
C. Distances measured vertically upwards from the principal axis are taken to be positive.
D. The object is always kept on the left of the mirror.

Answer 1

a is correct answer as they are measured from P