Question

Why do concave lenses always form virtual images?

Answer 1

The correct answer is:

The image formed by a convex lens may be real or virtual.The image formed by a concave lens is always virtual.

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Answer 2

Plane mirrors, convex mirrors, and diverging lenses can never produce a real image. A concave mirror and a converging lens will only produce a real image if the object is located beyond the focal point more than one focal length away