Discover how wave refraction works, why it happens and how it affects surfing in this easy-to-understand guide.

Ray diagrams can be used to ... 90° to the refracting surface. It is refraction that makes some objects appear to bend when they are viewed through water, like the straw shown here.

Learn about refraction, ray diagrams and how convex lenses bend light rays with this guide for KS3 physics students aged 11-14 ... Light is refracted when it enters a material like water or glass.

The post shows a green laser beam projected over a body of water. It also includes a diagram showing how the distance between a straight laser beam and the water below should increase as the ...