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"In theory, theory and practice are the same. In practice, they are not." ..."Albert Einstein (1879~1955, Mathematical physicist, Nobel Prize 1921-Physics)"
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Author Topic: Tracker Analysis of Snell's Law of Refractive of Semi-Circle Glass Block  (Read 7789 times)
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lookang
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on: August 15, 2012, 12:46:52 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE

Tracker Analysis of Snell's Law of Refractive of Semi-Circle Glass Block


Hi Prof Hwang,
can allow my account to attach bigger video files?
the video is 11 mb


the data is here
https://docs.google.com/spreadsheet/ccc?key=0AjIvSg-TzZrZdHMxdTdCLXJkY3NlSmJHRVZzZXFMU2c#gid=0



i degree r degree i radian r radian sin i sin r n = sin i /sin r
9.50 6.80 0.166 0.119 0.165 0.118 1.394
18.80 13.30 0.328 0.232 0.322 0.230 1.401
29.30 20.50 0.511 0.358 0.489 0.350 1.397
39.70 26.50 0.693 0.463 0.639 0.446 1.432
49.30 31.70 0.860 0.553 0.758 0.525 1.443
59.50 36.60 1.038 0.639 0.862 0.596 1.445
69.30 40.50 1.210 0.707 0.935 0.649 1.440
79.00 42.70 1.379 0.745 0.982 0.678 1.447
   1.425 average
for the video http://youtu.be/yfawFJCRDSE


http://en.wikipedia.org/wiki/Snell's_law
i speculate that the material is http://en.wikipedia.org/wiki/List_of_refractive_indices Sylgard 184 or my estimates are wrong. Smiley



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"In theory, theory and practice are the same. In practice, they are not." ..."Albert Einstein (1879~1955, Mathematical physicist, Nobel Prize 1921-Physics)"
 
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