Point A (0, 1) and B (12, 5) are object-image pair (one of the point acts as object and the other point as image) x-axis is the principal axis of the mirror. Then this object image pair is:
(A) due to a convex mirror of focal length 2.5 cm
(B) due to a concave mirror having its pole at (2, 0)
(C) real virtual pair
(D) data is insufficient for (A) and (B)
