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Unformatted text preview: What you should know about ... Waves 1. Basic wave properties [Q1] Superposition principle holds if wave equation is linear f = / 2 , = 2 /k , wave speed v = f = /k What does wave velocity depend on? e.g., string: tension and mass per unit length What is resonance? Finding normal modes (as in homework): boundary conditions, counting wavelengths Fourier series: a periodic function can be uniquely decomposed into a sum of sines and cosines 2. Interference phenomena [Q2,Q4] Diffraction through or around object (slit, eyeball, etc.) with size a total diffraction if > a ; no diffraction if a Construction using path difference to derive sin = /a formula for first minimum. When can objects be resolved? (qualitative and quantitative) Applying two-slit interference formula Construction using path difference to derive formula for bright spots: d sin = n What you should know about ... Particlelike Properties of Waves and Wavelike Properties of Particles 1. Photon model [Q3] photon energy/momentum related to frequency and wavelength Basic relations:...
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