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Plane refraction label quiz

Click on the ball beside the label and then click near the start of the arrow that points to its correct position on the diagram.

The refractive index n1 is less than that of n2 and the speed of light in medium 1 is greater than that in medium 2.

Once you have chosen a label you must find its correct position on the diagram before you can continue with the quiz.

© Keith Gibbs and John Bourne 2016