Show that a concave lens will always form a virtual image of a real object.

Mark 'T' if the statement is true and 'F' if it is false: A concave lens always form a virtul image.(T/F)

Which type of lens forms always a virtual image?

A convex lens forms a virtual image of an object. What is the position of the object?

Use the mirror equation to deduce that: a convex mirror always produces a virtual image independent of the location of the object.