![](https://d1e4pidl3fu268.cloudfront.net/250d6223-9a20-4732-b023-90111d642418/TIR.crop_573x430_127,1.preview.png)
A Handout with a protractor on the page to help students:
- Line up their semi-circular block correctly,
- Know where to aim their incident ray of light from their ray box and
- Measure the angle to the Normal for both refraction and total internal reflection
Enjoy!
(I welcome any constructive feedback)
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£1.00