reflection + refraction

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5 Terms

1
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What is the formula for reflection

incident angle = reflection angle

2
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When does reflection happen

when it bounces off of a surface

3
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What is the formula for refraction

Sin (incident) / Sin (refraction)

4
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when does refraction happen

when light passes through a more denser area that slows the light down.

5
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how to calculate refractive index

speed of light in vacuum/speed of light in material