Physics of light and optics by Justin Peatross; Michael Ware

By Justin Peatross; Michael Ware

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He developed the law discussed here as one of Maxwell’s equations in 1835, but it was not published until 1867, after Gauss’ death. Ironically, Maxwell was already using Gauss’ law by that time. 12) The latter equation is known as the Biot-Savart law. The permeability µ0 dictates the strength of the magnetic field, given the current distribution. As with Coulomb’s law, we can apply mathematics to the Biot-Savart law to obtain another of Maxwell’s equations. 12) as8 Jean-Baptiste Biot (1774-1862, French) was born in Paris.

He was captured, and his career might of have met a tragic ending there had Monge not successfully pleaded for his release from jail. Biot went on to become a professor of physics at the College de France. Among other contributions, Biot participated in the first hot-air balloon ride with Gay-Lussac and correctly deduced that meteorites that fell on L’Aigle, France in 1803 came from space. Later Biot collaborated with the younger Felix Savart (1791-1841) on the theory of magnetism and electrical currents.

Without this term, it is only possible to describe optical index at frequencies away from where absorption takes place. Finally, −k Hooke rmicro is a force accounting for the fact that the electron is bound to the nucleus. This restoring force can be thought of as an effective spring that pulls the displaced electron back towards equilibrium with a force proportional to the amount of displacement, so this term is essentially the familiar Hooke’s law.

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