formulae - SOME USEFUL CONSTANTS/CONVERSIONS h =...

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SOME USEFUL CONSTANTS/CONVERSIONS h = 6.6262(-27) erg-s c = 2.99792458(10) cm/s k = 1.380622(-16) erg/K k/hc = 0.695 cm -1 /K h = 1.0545(-27) erg-s 1 Å = 10 -8 cm 1 eV = 1.602(-12) erg μ b /h = 1.400 MHz/Gauss c = λν 1 cm -1 "=" 29.979 GHz SOME USEFUL EXPRESSIONS R u<-l = 2 π /3 h 2 ρ ( ν ul ) | μ ul | 2 (cgs) H' = - μ E (electric interaction) H' = - m B (magnetic interaction) where μ m = - μ b L /h - 2 μ b S /h μ b = Bohr Magneton A ul (cgs) = 32 π 3 ν ul 3 | μ ul | 2 / 3 h c 3 B ul (cgs) = 2 π /3 h 2 | μ ul | 2 (cgs) ρ T ( ν ) = { 8 π h ν 3 /c 3 }{exp(h ν /kT) - 1} -1 I( ν )d ν = ( c/4 π ) ρ T ( ν ) I( ν ) = I 0 ( ν ) exp(- κ ν x) κ ν d ν = 8 π 3 ν ul n l | μ ul | 2 / 3hc τ ν = κ ν x path length l κ ν max = 8 π 2 ν ul n l | μ ul | 2 / 3hc Δν ( Lorentzian) κ ν = κ ν max Δν 2 /{ ( ν−ν ul ) 2 + Δν 2 } (Lorentzian shape; Δν = HWHM) E n (eV) = -13.60 Z 2 /n 2 E n1,n2,. . (eV) = -13.60 Z
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This note was uploaded on 06/13/2011 for the course PHYSICS 780.04 taught by Professor Staff during the Winter '07 term at Ohio State.

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formulae - SOME USEFUL CONSTANTS/CONVERSIONS h =...

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