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Diffstat (limited to 'Modern_Physics/Chapter11.ipynb')
| -rwxr-xr-x | Modern_Physics/Chapter11.ipynb | 136 |
1 files changed, 73 insertions, 63 deletions
diff --git a/Modern_Physics/Chapter11.ipynb b/Modern_Physics/Chapter11.ipynb index 65f716cb..8b1cca27 100755 --- a/Modern_Physics/Chapter11.ipynb +++ b/Modern_Physics/Chapter11.ipynb @@ -1,7 +1,6 @@ { "metadata": { - "name": "", - "signature": "sha256:e6be7abf8c97801180567f4f6cb83dc9e729f9c81204b1adfe4e1f54ff45dd36" + "name": "Chapter11" }, "nbformat": 3, "nbformat_minor": 0, @@ -13,7 +12,7 @@ "level": 1, "metadata": {}, "source": [ - "Chapter 11: Molecular Structure" + "Chapter 11:Solid State Physics" ] }, { @@ -21,46 +20,28 @@ "level": 2, "metadata": {}, "source": [ - "Example 11.1, page no. 380" + "Example 11.1, Page 346" ] }, { "cell_type": "code", "collapsed": false, "input": [ + "#initiation of variable\n", + "c=769.0*10**3; Na=6.023*10**23; JeV=1.6*10**-19; #various constants and given values\n", "\n", - "import math\n", + "#calculation\n", + "Be=c/(Na*JeV); #Binding energy of an ion pair in the lattice\n", "\n", - "#Variable Declaration\n", + "#result\n", + "print\"The experimental value was found out to be in eV.\",round(Be,5);\n", "\n", - "f = 1.15 * 10 ** 11 # Frequency(Hz)\n", - "h = 1.055 * 10 ** -34 # Planck's constant(J.s)\n", - " \n", - "#Calculation\n", + "#partb\n", + "n=9.0;a=1.7476; R=0.281; k= 1.44; #Given values and consstants\n", + "Bc=k*a*(1-(1/n))/R; #ionic binding energy experimentally\n", "\n", - "w = 2 * math.pi * f\n", - "Icm = h / w\n", - "\n", - "#Results\n", - "\n", - "print \"(a) The moment of inertia is\",round(Icm/10 **-46 , 2),\"X 10^-46 kg.m^2.\"\n", - "\n", - "\n", - "\n", - "#Variable Declaration\n", - "\n", - "Ac = 12.0 #atomic mass of carbon (u)\n", - "Ao = 16.0 #atomic mass of oxygen (u)\n", - "u = 1.66 * 10 ** -27#(kg)\n", - "\n", - "#Calculation\n", - "\n", - "mu = Ac* Ao /(Ac+Ao)\n", - "R0 = math.sqrt(Icm/(mu*u))\n", - "\n", - "#Results\n", - "\n", - "print \"(b) The bond length of the molecule is\",round(R0/10**-9,3),\"nm.\"" + "#result\n", + "print\"The calculated value of the binding energy in eV.is\",round(Bc,4);\n" ], "language": "python", "metadata": {}, @@ -69,8 +50,42 @@ "output_type": "stream", "stream": "stdout", "text": [ - "(a) The moment of inertia is 1.46 X 10^-46 kg.m^2.\n", - "(b) The bond length of the molecule is 0.113 nm.\n" + "The experimental value was found out to be in eV. 7.97983\n", + "The calculated value of the binding energy in eV.is 7.9606\n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 11.2, Page 350" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#initiation of variable\n", + "a=3.61;# amount of energy required to remove an electron from Cl- ion\n", + "b=-5.14 #amount of energy returned when an electron is added to Na+ ion\\\n", + "c=7.98 #binding energy of NaCl atom\n", + "\n", + "#calculation\n", + "E=a+b+c #sum of all the energies\n", + "print\"The net energy to be supplied in eV is\",round(E,3);" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The net energy to be supplied in eV is 6.45\n" ] } ], @@ -81,44 +96,38 @@ "level": 2, "metadata": {}, "source": [ - "Example 11.2, page no. 383" + "Example 11.3, Page 355" ] }, { "cell_type": "code", "collapsed": false, "input": [ + "#initiation of variable\n", + "from math import exp,sqrt\n", + "Na=6.023*10**23; p=8.96*10**3; M=63.5*10**-3; #Na=avagadro's number,p=density,M=molar mass\n", "\n", + "#calculation\n", + "n= p*Na/M; #density of charge carriers\n", "\n", - "import math\n", - "\n", - "#Variable Declaration\n", - "\n", - "f = 6.42 * 10 ** 13 #frequency(Hz)\n", - "mu = 1.14 * 10 ** -26 #(kg)\n", - " \n", - "#Calculation\n", - "\n", - "w = 2 * math.pi * f\n", - "K = mu * w**2\n", - "\n", - "#Results\n", - "\n", - "print \"(a) The force constant for this molecule is \",round(K/10**3,2),\"X 10^3 N/m.\"\n", - "\n", - "\n", - "\n", - "#Variable Declaration\n", + "#result'\n", + "print\"The density of charge carriers in copper in atoms/m3 is %.1e\" %round(n,3);\n", "\n", - "h = 1.055 * 10 ** -34 #Planck's constant (J.s)\n", + "s=5.88*10**7;m=9.11*10**-31;e=1.6*10**-19; #charge & mass of an electron,resistance per unit length\n", + "t= s*m/(n*e**2); #average time between collisions\n", "\n", - "#Calculation\n", + "#result\n", + "print \"The average time between collisions of conducting electrons in sec.is %.1e\" %t\n", "\n", - "A = (h/(mu * w)) ** 0.5\n", + "#partb\n", + "Ef=7.03*1.6*10**-19; #converting given enrgy to J\n", "\n", - "#Results\n", + "#calculation\n", + "Vf=sqrt(2*Ef/m); #fermi velocity\n", + "l=Vf*t; #mean free path\n", "\n", - "print \"(b) The Vibration amplitude is\",round(A/10**-9,5),\"nm.\"" + "#result\n", + "print \"The average mean free path is\",l,\"m =\",round(l*10**9,3),\" nm\"\n" ], "language": "python", "metadata": {}, @@ -127,12 +136,13 @@ "output_type": "stream", "stream": "stdout", "text": [ - "(a) The force constant for this molecule is 1.85 X 10^3 N/m.\n", - "(b) The Vibration amplitude is 0.00479 nm.\n" + "The density of charge carriers in copper in atoms/m3 is 8.5e+28\n", + "The average time between collisions of conducting electrons in sec.is 2.5e-14\n", + "The average mean free path is 3.8690296096e-08 m = 38.69 nm\n" ] } ], - "prompt_number": 6 + "prompt_number": 1 } ], "metadata": {} |