02_03_Refraction_2

# 02_03_Refraction_2 - Today 2/3 o o o o o o Total Internal...

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Today 2/3 o Total Internal Reflection o No HW due Today o Lab: Refractive index with Pins and Blocks o Start reading chapter 26.6-8 on Lenses o HW: 2/3 “Refraction” Due Thursday, 2/6 o Exam I Thursday, Feb 13

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This Week’s Lab Pins “Images” will not line up when the “objects” do
This Week’s Lab Pins “Objects” will not line up when the “Images” do

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Refraction-Bending Light Water - index of refraction, n W = 1.33 Wave crests are closer together in higher index materials because the waves travel slower. Air - index of refraction, n A = 1.0 Think of rows in a marching band that slow down in a mud puddle.
Refraction-Bending Light Water - index of refraction, n W = 1.33 When light enters at an angle, it “bends.” Air - index of refraction, n A = 1.0 Think of rows in a marching band that slow down in mud puddle. Ray direction always perpendicular to the waves.

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Ray diagram example Water - index of refraction n W = 1.33 Air - index of refraction n A = 1.0 Refraction makes it seem as though its closer Image Object
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## This note was uploaded on 12/21/2010 for the course PHYS Physics 21 taught by Professor Larrywatson during the Spring '08 term at North Dakota.

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02_03_Refraction_2 - Today 2/3 o o o o o o Total Internal...

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