Step-by-step explanation:
- The principal focus of a concave mirror is defined as the point when the ray of light that are parallel to the principal axis converge.
- It is denoted by letter F.
- When the object is placed between the focus and the pole of the concave mirror, the image is formed behind the mirror.
- The formed image is enlarged in size than the object.
- A virtual and erect image is formed.
- The attached figure shows the whole scenario.