W9_parallel_resonance.eps
Week 13: Interference and Diffraction 419 If this criterion is satisfied, there is a resolvable dip in intensity in between the ...
420 Week 13: Interference and Diffraction asin(θ) = (m+^1 2 )λ As was the case forN-slit intereference secondary maxima, however ...
Week 13: Interference and Diffraction 421 To understand this, note that when light reflects from an interface between a medium ...
422 Week 13: Interference and Diffraction becomes perfectly non-reflective, hence transparent. You canobserve this when a soap b ...
Week 13: Interference and Diffraction 423 13.1.1: Hot Sources and Wave Coherence Although we’ve see that Maxwell’s equations in ...
424 Week 13: Interference and Diffraction that is, it might beapproximatelyconstant over a time that is long compared to a perio ...
Week 13: Interference and Diffraction 425 Hot sources are thus coherent, but only over acomparatively short time. We use the heu ...
426 Week 13: Interference and Diffraction question, and even white light from hot sources – as a mixture of many frequencies tha ...
Week 13: Interference and Diffraction 427 13.2: Interference from Two Narrow Slits The first, and simplest, example of interfere ...
428 Week 13: Interference and Diffraction source in the center of the screenE 0. Then the total field at pointPis: Etot(P) = E 0 ...
Week 13: Interference and Diffraction 429 kr − tω Etot Eo kr − tω Eo δ δ/2 δ/2 Figure 179: Phasor diagram for the addition of th ...
430 Week 13: Interference and Diffraction or the actual anglesθwhere: dsin(θ) =±mλ (1032) The intensity is 4I 0 at the maxima. T ...
Week 13: Interference and Diffraction 431 Consider the general phasor diagram in figure??. We wish to add: Etot=E 0 sin(kr−ωt) + ...
432 Week 13: Interference and Diffraction 2 π 3 4 π 3 4 π 3 2 π 3 π π δ = Principle maxima a^000 E E E E 0 E 0 E 0 E 0 E 0 E 0 E ...
Week 13: Interference and Diffraction 433 or these angles withany integer multiple of 2 πadded (or subtracted). If we multiply t ...
434 Week 13: Interference and Diffraction E 0 E 0 E 0 E 0 E 0 Principle Maxima = 5E 0 2 π/5 4 π/5 6 π/5 Minima 8 π ...
Week 13: Interference and Diffraction 435 Note well that the series doesn’t continue indefinitely – the largestmthat con- tribut ...
436 Week 13: Interference and Diffraction used to identify e.g. atoms and molecules from their “signature” optical spectra, and ...
Week 13: Interference and Diffraction 437 maximum. Again borrowing results from the previous section, we cansee that they should ...
438 Week 13: Interference and Diffraction The lines projected on the screen, however, are not infinitely sharp (even if the sodi ...
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