Solution:
Assertion(A): If the object is kept beyond the centre of curvature, then the image formed will be inverted, real, and infinitely diminished. It means that a person can not see his image if he stands beyond the centre of the concave mirror. So Assertion is true.Reason(R): If the object is placed beyond the focus of the concave mirror, then the image formed will be real and inverted and may be either enlarged or of the same size. Depends on the exact position of the object.