Aim: To investigate how light is affected by changing the substance it is travelling through.
Method: Collect the equipment from your teacher, and set them up to produce a single beam of light.
Findings:
When light travelling through air and passes into a glass block it slows down and bends inwards, towards normal. When light travelling through a glass block exits that block and enters the air, it speeds up and bends outwards, away from normal.
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