Question

Which type of lens forms always a virtual image?

Answer 1

Concave lens:

1. A concave lens has at least one inwardly curved surface. It is a divergent lens, which means that visible light refracted via it is stretched out.
2. Concave lenses are narrower in the center than at the borders and are used to treat short-sightedness.
3. A virtual picture is produced at the focus whenever an item is positioned at infinity. The picture is substantially smaller in size than the object.
4. A virtual picture is produced between the pole and the focus of the convex lens whenever an item is positioned at a limited distance from the lens. The image's size would be less than the object's.
5. The concave lenses will always form virtual, erect, and diminished images.

Therefore, the concave lenses will always form a virtual image.