added books

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": {}