Birds need to take REFRACTION into account when diving for fish in water because it makes the fish appear:

When a laser beam is refracted as it passes from glass to water, it is bent:

Light rays which are hitting different parts of a particular lens' surface either: (choose two)

All of the light rays hitting the surface of a lens are refracted by the same amount:

Concave lenses cause light rays to:

If a beetle is located five focal lengths away from a magnifying glass, the image produced will be both:

A lens that is curved outwards and is thicker in the middle is called a:

The focal length of a lens is the distance between the lens': (choose 2)