Refraction - Snell's law (diagram)

Case contributed by Dr Matt Adams
Diagram

The diagram illustrates refraction angles based on Snell's Law and is an important concept in ultrasound.

Snell's law is as follows:

sin θ1/c1 = sinθ2/c2

Where:

  • θ1 is the incident angle and θ2 is the refracted angle
  • c1 is the speed of propagation in the first material and c2 is the speed of propagation in the second material

Example of possible numerical values are shown in the diagram.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.