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quiz2_10

# quiz2_10 - E = pc which implies that p = hf/c = h/Î...

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Physics 2D Quiz #2 Department of Physics, UCSD Summer Session II - 2010 Prof. Pathria 13 August 2010 Some Useful Data Speed of light: c = 3 × 10 8 m/s c = λf Planck’s constant: h = 6 . 626 × 10 - 34 J · s Atomic mass unit (amu): 1 amu = 1 . 66054 × 10 - 27 kg = 931 . 5 MeV/c 2 Rest mass of an electron: m e = 9 . 11 × 10 - 31 kg = 0 . 511 MeV/c 2 1 eV = 1 . 602 × 10 - 19 J Total energy of a particle: E = K + m 0 c 2 = γm 0 c 2 , where γ = 1 - u 2 c 2 - 1 / 2 Momentum of a particle: p = γm 0 u Energy-momentum relation for a particle: E 2 = ( pc ) 2 + ( m 0 c 2 ) 2 Energy-momentum relation for a photon:

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Unformatted text preview: E = pc , which implies that p = hf/c = h/Î» Photo-electric equation: eV s = hf-Ï† = h ( f-f ) Compton scattering formula: Î»-Î» = h m e c (1-cos Î¸ ) Compton wavelength for an electron: h m e c = 0 . 00243 nm Instructions Please write your answers in your blue book, and make sure your secret code number is written on all pages in indelible ink. 1...
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