How a prism works

This task is about using a diagram to explain how light travels through a prism.
Diagrams can be used to show physical events that you can observe.

Question 1Change answer

Prism-rays-A.png

This diagram shows what happens when light travels through a glass prism.

a)  Describe two things that the lines in the diagram show about the light rays.
 
i)
ii)
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