Copy of Reflect a lamp
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Reflection and Refraction
1. Reflect a ray: http://www.geogebratube.org/material/show/id/111895
2. One side is reflective: http://www.geogebratube.org/material/show/id/112443
→3. Lamp
4. Refract a ray: http://www.geogebratube.org/material/show/id/112931