Lecture6 - PHY102 1 Major Concepts in Physics Lecture 6....

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Unformatted text preview: PHY102 1 Major Concepts in Physics Lecture 6. Prof Simon Catterall Office 309 Physics, x 5978 [email protected] http://physics/courses/PHY102.08Spring PHY102 Topics ¡ Recap/finish diffraction ¡ Light as electromagnetic wave PHY102 Announcements ¡ Exam 1 – Monday 11 – example exam available from web page soon … ¢ Also hw1 solutions ¡ Review session – this Wednesday in class ¡ Also review in workshop. ¡ Homework 1 due this week. Homework 2 goes out in recitation (due in 2 weeks) PHY102 Diffraction - recap ¡ When waves encounter obstacle of size comparable to wavelength – bend around it. ¡ Understand using Huygen’s principle ¢ Build wavefront at time t by adding together wavelets originating along wavefront at earlier time ¡ Why we can hear `around corners’ ¡ Limits resolution of optical instruments ¡ Simplest example – single slit diffraction. PHY102 The intensity pattern on the screen. PHY102 λ θ m a = sin The minima occur when: where m = ± 1, ± 2,… PHY102...
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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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Lecture6 - PHY102 1 Major Concepts in Physics Lecture 6....

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