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Explain why light bends when it goes between different materials and how this amount of bending...

Explain why light bends when it goes between different materials and how this amount of bending is determined? Use the following vocabulary words in your summary: index of refraction, incident angle, reflected angle, and refracted angle.

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Answer #1

Refraction is the bending of the path of a light wave as it passes from one material into another material. The refraction occurs at the boundary and is caused by a change in the speed of the light wave upon crossing the boundary.

The amount of bending is determined by Snell's Law:

​​​​​​

Where N1 refractive index of medium 1 and n2 is refractive index of medium 2

And i is angle of incidence and r is angle of refraction.

By knowing n1 and n2, and measuring angle I we can calculate out the angle r.

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