A ray of light is going towards the focus of a concave lens. Draw a ray diagram to show the path of this ray of light after refraction through the lens.

Copy and complete the diagram below to show what happens to the rays of light when they pass through the concave lens:

Which type of lenses is?

(a) Thinner in the middle than at the edges?

(B) Thicker in the middle than at the edges?

What type of images can a convex lens make?

What type of image is always made by a concave lens?