Moving an object from infinity to a concave mirror

When an object is moved from infinity towards a concave mirror, the image formed by the mirror undergoes changes in its characteristics. Let's discuss the changes in detail:

Size of the image:

As the object moves closer to the mirror, the size of the image formed by the mirror increases. When the object is at infinity, the image is formed at the focus of the mirror and is highly diminished. As the object moves closer to the mirror, the image becomes larger.

Position of the image:

When the object is at infinity, the image formed by the mirror is formed at the focus of the mirror. As the object moves closer to the mirror, the image moves away from the focus and towards the mirror. When the object is at the center of curvature of the mirror, the image is formed at the center of curvature. When the object is placed between the center of curvature and the focus, the image is formed beyond the center of curvature.

Type of the image:

When the object is at infinity, the image formed by the mirror is highly diminished and real. As the object moves closer to the mirror, the image becomes larger and the image distance becomes smaller. When the object is placed between the focus and the mirror, the image formed by the mirror becomes virtual and erect. When the object is placed beyond the center of curvature, the image formed by the mirror becomes real, inverted and reduced.

Conclusion:

Thus, when an object is moved from infinity towards a concave mirror, the size, position, and type of the image formed by the mirror undergo changes. These changes are determined by the position of the object with respect to the mirror.