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Slide 3

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By the end of this lesson you should be able to:
Define refraction
Draw ray diagrams showing refraction of light
by a glass or Perspex block
List and explain everyday examples of
refraction
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Slide 4

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Animation showing refraction at the air/glass
boundary
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Investigating refraction
The ray box
Apparatus:
will get very
hot. Be careful
Power pack when handling it!
Ray box
Slit
Perspex block
Protractor
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Exam tip
You will lose marks
in an examination
when you are
drawing a light ray if
you do not:
1. Use a ruler.
2. Add an arrow to
show direction.
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