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Physics 8.03 Vibrations and Waves. Lecture 18 Interference. Announcements. Problem set #9 is due Friday, April 30. Last time: dielectric media. Polarization and magnetization index of refraction modifies Maxwell’s equations modifies wave velocity v = c/n
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Physics 8.03Vibrations and Waves Lecture 18 Interference
Announcements • Problem set #9 is due Friday, April 30
Last time: dielectric media • Polarization and magnetization index of refraction modifies Maxwell’s equations modifies wave velocity v = c/n • Laws of reflection and refraction (Snell) • Total internal reflection • Fresnel equations • Brewsters’s angle • Reflection and transmission amplitudes
Today: interference • Due to phase difference between two sources • Propagation phase + intrinsic phase • Due to phase difference for single source propagating in media with different indices of refraction