'Spherical wave' diaporamas de présentation

2.4 wave equation in quadratic index media

2.4 wave equation in quadratic index media.

2.2k views • 188 slides

Seismic waves and global seismology

Seismic waves and global seismology. Waves move energy (not matter!) in space-time. Spherical wave W(r,t) = f(r-v*t) Plane wave W(x,t) = f(x-v*t). Spherical wave propagating outward at velocity V (Sinusoidal source) note the amplitude decay of the waves as it moves away from the source.

941 views • 45 slides

Coherent X-ray Science: Coherence, Imaging & Molecules

Coherent X-ray Science: Coherence, Imaging & Molecules. Keith A. Nugent ARC Centre of Excellence for Coherent X-ray Science & School of Physics The University of Melbourne Australia. Plan of presentation. Develop a view of coherent diffractive imaging including partial coherence.

713 views • 42 slides

Neutrons 101

401 views • 36 slides

EE3321 ELECTROMAGENTIC FIELD THEORY

542 views • 32 slides

due to the oscillating charge in the antenna

Along this line one does not observe any acceleration. Here one observes the full acceleration, but delayed in time by R/c !. Radiation from a dipole-antenna. Guess that. 2. To get the dimension right !. Electromagnetic radiation. due to the oscillating charge in the antenna.

321 views • 24 slides

Announcements 10/26/12

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PHYSICS 231 Lecture 35: Sound

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What is sound?

What is sound?. Sound is a longitudinal wave produced by a vibrating source Examples of sources: tuning fork, vocal cords, lips or reed on a musical instrument The vibration produces COMPRESSIONS and RAREFACTIONS in the air

1.01k views • 18 slides

Outdoors propagation free field (point source)

317 views • 16 slides

521 views • 16 slides

Tomographic algorithm for multiconjugate adaptive optics systems

312 views • 16 slides

Physics 452

Physics 452. Quantum mechanics II Winter 2011. Karine Chesnel. Phys 452. Homework. Today Mar 30 : assignment # 20 11.1, 11.2, 11.4 Friday Apr 1 : assignment #21 11.5, 11.6, 11.7. Sign up for the QM & Research presentations Next week, W April 6 or F April 8. Phys 452. Scattering.

165 views • 16 slides

Three-dimensional Quantitative Ultrasound Imaging

167 views • 15 slides

Agenda

190 views • 12 slides

Announcements 3/30/11

117 views • 11 slides

Harmonic Waves

Harmonic Waves. An harmonically oscillating point is described by a sine wave. y = A cos w t An object can take a sinusoidal shape in space. y = A cos kx. 1 wavelength. 1 period. Sinusoidal Behavior. y. t. y. x. Two Variables.

210 views • 8 slides