Spring2007Final - FINAL TEST MSE 110 Spring 2007...

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Unformatted text preview: FINAL TEST MSE 110 Spring 2007 Instructions: Put your name, the number of your section and all your answers on the answer sheet (last page). No notes, paper or books are allowed except the Sargent-Welsh periodic table. Ask if you need more paper. Be aware that the questions can have different weigh. There are no negative points for wrong answers. Good luck Some Equations that you may need : E = h , c = , mv h = , E k =mv 2 , 2 2 1 mv + = h , S V e = 2 2 1 mv = 2 2 1 1 6 . 13 i f f i n n E E , Z n a r o n 2 = , 2 2 6 . 13 n Z E n = , 2 n L = , 2 r=n , r ze E Coul 2 4 = , n rep r C E = , ne = , =L = kT E N n g c 2 exp , =n h e h + n e e e , 2 2 R a = , R a 3 4 = , = 2d sin , 2 2 2 ) ( l k h a d hkl + + = ,., ] [ ] [Re ln RT E E o Ox d nF = , equ equ Ox d K ] [ ] [Re = , + = 2 1 1 1 2 1 1 m m k , 2 1 1 + = = n n I I R o R , v c n = = o S I a I 4 = , l = e o I I , 2 1 2 1 sin sin n n = Some constants and conversions : Plancks constant: h = 6.626 10-34 J sec Boltzmanns constant: k = 1.38 10-23 J/K molecule Avogadros number: N A = 6.02 10 23 molecules/mole Permittivity of space: = 8.86 10-12 C 2 /J m Gas constant: R = 8.314 K-1 mole-1 ; Electron charge: e = 1.602 10-19 coul Electron mass: m = 9.1 10-31 kg; Proton mass = 1.67 10-27 kg Speed of light: c = 3 10 8 m/sec; Bohrs radius: a = 52.9 pm 0257 . RT = F Faraday constant: F=96500 C N c = 5 10 25 m-3 E o (O 2 /OH-) = 0.40 V E o (O 2 /H 2 O) = 1.23 V 1 eV = 1.602 10 19 J 1 J =1 kgm 2 s-2 PART I Question 1: The dielectric constant of diamond is = - 4.8. (3pts) (1) TRUE (2) FALSE Question 2: The greater the velocity of the light in a material, the greater the reflectivity of that material. (4pts) (1) TRUE (2) FALSE Question 3: Within the optical window the absorption is close to 100%. (3pts) (1) TRUE (2) FALSE Question 4: The greater the concentration of impurities the greater the absorption coefficent. (4pts)The greater the concentration of impurities the greater the absorption coefficent....
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Spring2007Final - FINAL TEST MSE 110 Spring 2007...

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