Can a concave lens form an image form an image of size two times that of the object?
Give reason.

Dear Student,
No.Concave lens cannot form an image of size two times as that of the object.Because concave lens alwaysy produces a diminished image.

Any ray of light passing parallel to the optic axis of concave lens always diverges.But the ray passing through the optic center will travels undeviated. When the diverged rays are retraced backwards they always intersect at a height lower than that of the object.