Lecture5 - PHY102 1 Major Concepts in Physics Lecture 5....

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Unformatted text preview: PHY102 1 Major Concepts in Physics Lecture 5. Prof Simon Catterall Office 309 Physics, x 5978 smc@physics.syr.edu http://physics/courses/PHY102.08Spring PHY102 Topics for today Iridescence demo Diffraction gratings (light) - demo Diffraction bending of waves around obstacles Only important for waves with wavelength comparable to size of object PHY102 Oil on water Create large, stable layer in bottle. See multiple colors gravity causes film to have varying thickness constructive thin film interference picks out certain wavelengths (colors) as thickness varies (and angle of viewing) PHY102 A light ray can be reflected many times within a medium. PHY102 . PHY102 Recap - double slit interference d m m d l = = = sin sin d m m d l = = = sin sin The condition for constructive interference is sin = = y/D for small The distance between two adjacent minima is: ( ) d D m m d D h h = = 1 2 1 2 PHY102 More slits...
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This note was uploaded on 05/18/2008 for the course PHY 102 taught by Professor Simoncatterall during the Spring '08 term at Syracuse.

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Lecture5 - PHY102 1 Major Concepts in Physics Lecture 5....

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