Science w Ms Hendryx 32712 Calculating JellOs Refractive Index Snells Law Assume the index of air n 1 is 1 Using protractors and a laser pointer students can calculate the index of refraction of JellO n ID: 486758
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Slide1
AcaDec
Science w/ Ms. Hendryx
3/27/12Slide2
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 (n2).Slide3
Calculating Jell-O’s Refractive Index: Student WorkSlide4
Calculating Jell-O’s Refractive Index: Student WorkSlide5
Calculating Jell-O’s Refractive Index: Student WorkSlide6
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-O
that they have measured.This is easier than verifying R
since there is more error in the focal length measurement
.Slide7
2-Lens SystemSlide8
Internal reflection