a)
I When an object is put between the pole and the focus of a concave mirror, the image created is virtual, erect, and bigger than the object, and it is formed behind the mirror.
ii) When an item is put between the concave mirror’s centre of curvature and its focus, the image created is beyond the centre of curvature. The resulting picture is accurate, reversed, and bigger than the item.
b) A shaving mirror is one application of a concave mirror based on image formations.