#Light intensity to force equation iso

Physics for Scientists and Engineers: Electricity, Magnetism, Light, and Elementary Modern Physics (5th ed.). Introduction to Electrodynamics (3rd ed.). (This article accompanied a Decempresentation by Maxwell to the Royal Society.)

Maxwell, James Clerk, ' A Dynamical Theory of the Electromagnetic Field', Philosophical Transactions of the Royal Society of London 155, 459-512 (1865).

45 Archived at the Wayback Machineįurther reading Electromagnetism Journal articles

See NIST Special Publication 330, Appendix 2, p. In the original Recommendation of 1983, the symbol c was used for this purpose.

#Light intensity to force equation iso

^ Current practice is to use c 0 to denote the speed of light in vacuum according to ISO 31.In addition, for a valid solution, the wave vector and the angular frequency are not independent they must adhere to the dispersion relation: As a result, and based on the theory of Fourier decomposition, a real wave must consist of the superposition of an infinite set of sinusoidal frequencies. In practice, g cannot have infinite periodicity because any real electromagnetic wave must always have a finite extent in time and space. ∇ ⋅ E = 0 ∇ ⋅ B = 0 įor virtually any well-behaved function g of dimensionless argument φ, where ω is the angular frequency (in radians per second), and k = ( k x, k y, k z) is the wave vector (in radians per meter).Īlthough the function g can be and often is a monochromatic sine wave, it does not have to be sinusoidal, or even periodic.