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AcaDec

AcaDec. Science w/ Ms. Hendryx 3/27/12. Calculating Jell-O’s Refractive Index. Snell’s Law: Assume the index of air (n 1 ) is 1. Using protractors and a laser pointer, students can calculate the index of refraction of Jell-O (n 2 ). Calculating Jell-O’s Refractive Index: Student Work.

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AcaDec

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  1. AcaDec Science w/ Ms. Hendryx 3/27/12

  2. Calculating Jell-O’s Refractive Index • Snell’s Law: • Assume the index of air (n1) is 1. • Using protractors and a laser pointer, students can calculate the index of refraction of Jell-O (n2).

  3. Calculating Jell-O’s Refractive Index: Student Work

  4. Calculating Jell-O’s Refractive Index: Student Work

  5. Calculating Jell-O’s Refractive Index: Student Work

  6. Calculating Focal Length using Radius of Curvature • Focal length, f is related to the radius of curvature, R, of a lens of index n via the following equation: • Students can measure f, and then verify their result using R and nJell-Othat they have measured. • This is easier than verifying R since there is more error in the focal length measurement.

  7. 2-Lens System

  8. Internal reflection

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