Question

A concave lens can only form a

A. real image.
B. reversed image.
C. virtual image.
D. magnified image.
in my book it says concave makes a real image and convex makes a virtual image can someone please explain to me why this one isnt A.,

Answer 1

C. A concave lens can only form a virtual image, because they are thinner in the middle and thicker around the edges.