A virtual image is one that cannot be projected on a screen because the light rays do not actually converge but appear to diverge from a point.
Concave Mirror and Virtual Images:
A concave mirror can produce a virtual, erect, and magnified image when the object is placed between the focal point (F) and the mirror.
In this position, the reflected rays appear to diverge from a point behind the mirror, forming a virtual image.
Why Concave Mirror?
- When the object is within the focal length, the image formed is virtual and larger than the object.
- Convex mirrors always produce virtual, erect, and diminished images.
- Plane mirrors produce virtual images of the same size.
Summary:
- Virtual images larger than the object are produced by concave mirrors when the object is placed between the mirror and its focal point.
- This property is utilized in applications like shaving mirrors and makeup mirrors for magnified views.