Question

Use the drop-down menus to identify whether each description represents a convex lens, a concave lens, or both.

Has a focal point:



Is thicker in the middle than near the edges:


Creates only a right-side up image:


Causes light rays passing through it to refract:

Answer 1

Has a focal point: Both (convex has a real focal point; concave has a virtual focal point)

Is thicker in the middle than near the edges: Convex lens

Creates only a right-side up image: Concave lens (diverging lenses always produce upright virtual images)

Causes light rays passing through it to refract: Both