Classical Electrodynamics |
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Page 211
... velocity , called the group velocity : do vg = dk ( 7.32 ) If an energy density is associated with the magnitude of the wave ( or its absolute square ) , it is clear that in this approximation the transport of energy occurs with the ...
... velocity , called the group velocity : do vg = dk ( 7.32 ) If an energy density is associated with the magnitude of the wave ( or its absolute square ) , it is clear that in this approximation the transport of energy occurs with the ...
Page 340
... velocity is much larger than , and the group velocity much smaller than , the rms thermal velocity ( u2 ) . As the wave number increases towards kp , the phase velocity decreases from large values down towards ( u21⁄4 . Consequently for ...
... velocity is much larger than , and the group velocity much smaller than , the rms thermal velocity ( u2 ) . As the wave number increases towards kp , the phase velocity decreases from large values down towards ( u21⁄4 . Consequently for ...
Page 494
... velocity through a material medium can radiate if its velocity is greater than the phase velocity of light in the medium . Such radiation is called Cherenkov radiation , after its discoverer , P. A. Cherenkov ( 1937 ) . The emission of ...
... velocity through a material medium can radiate if its velocity is greater than the phase velocity of light in the medium . Such radiation is called Cherenkov radiation , after its discoverer , P. A. Cherenkov ( 1937 ) . The emission of ...
Common terms and phrases
4-vector acceleration Ampère's law angle angular distribution antenna approximation atomic axis Babinet's principle behavior boundary conditions calculate cavity Chapter charge q charged particle coefficients collisions component conducting conductor constant coordinate cross section cylinder d³x dielectric dielectric constant diffraction dipole direction discussed E₁ electric field electromagnetic fields electron electrostatic energy loss factor force equation frame frequency given Green's function impact parameter incident particle integral Kirchhoff Lagrangian Laplace's equation Lorentz force Lorentz invariant Lorentz transformation m₁ magnetic field magnetic induction magnitude Maxwell's equations meson modes momentum multipole nonrelativistic obtain oscillations P₁ P₂ parallel perpendicular phase velocity plane wave plasma polarization power radiated problem propagation radius region relativistic result scalar scattering screen shown in Fig shows sin² solution sphere spherical surface transverse unit V₁ vanishes vector potential velocity wave guide wave number wavelength ΦΩ