2016_11_02_notebook_60435 - Chem 2LA F16 Lily Tran Expt...

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1 2 Chem 2LA F16 - Lily Tran Expt 5./PreLab/InLab PDF Version generated by Lily Tran on Nov 02, 2016 @09:47 AM PDT Table of Contents Table of Contents PreLab/InLab
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Kim Edwards May 16, 2016 @10:15 AM PDT Lily Tran Oct 26, 2016 @01:02 PM PDT PreLab/InLab Assignment Status Assigned to Student Assignment # 5a Name PreLab/InLab Expt 5 Description Activity 1: Total Internal Reflection in Water revisions print revisions print PreLab/InLab/ 2 of 9
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Lily Tran Nov 01, 2016 @08:57 PM PDT Lily Tran Oct 26, 2016 @01:11 PM PDT Lily Tran Nov 01, 2016 @09:25 PM PDT 1/ Prediction: 2/ Did the pencil bend in the direction you thought it would? Record (sketch) the pen’s or pencil’s appearance in the water. Provide an explanation of what is happening. The pencil bend more than what I predict. In the water, the pencil bend in the same direction but different angle from that in the air. As light enters water at an angle, it bends away from its original path, and this makes the image of the pencil look bent. 3/ Prediction: 4/ Reality: Laser class: 3A Explanation: As angle of incidence is close to 0 degree, the light is transmitted across the tank and it does not reflect at all. As the angle increased, we observed refraction (the angle of refraction is greater than incidence) and the brightness of the refracted ray decreases. When the angle of incident is greater than critical angle, total internal reflection occurs (picture in the right) 5/ Hopefully, you found an angle after which the light no longer transmits through the back of the fish tank. This angle is
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  • Fall '16
  • Chemistry, Light, Snell's Law, Total internal reflection, revisions print, Lily Tran

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