Removed duplicates

1 files changed, 0 insertions, 151 deletions

diff --git a/backup/Modern_Physics_version_backup/Chapter11.ipynb b/backup/Modern_Physics_version_backup/Chapter11.ipynb
deleted file mode 100755
index 8b1cca27..00000000
--- a/backup/Modern_Physics_version_backup/Chapter11.ipynb
+++ /dev/null
@@ -1,151 +0,0 @@
-{
- "metadata": {
-  "name": "Chapter11"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
-  {
-   "cells": [
-    {
-     "cell_type": "heading",
-     "level": 1,
-     "metadata": {},
-     "source": [
-      "Chapter 11:Solid State Physics"
-     ]
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "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",
-      "#calculation\n",
-      "Be=c/(Na*JeV);        #Binding energy of an ion pair in the lattice\n",
-      "\n",
-      "#result\n",
-      "print\"The experimental value was found out to be in eV.\",round(Be,5);\n",
-      "\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",
-      "#result\n",
-      "print\"The calculated value of the binding energy in eV.is\",round(Bc,4);\n"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "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"
-       ]
-      }
-     ],
-     "prompt_number": 2
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "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",
-      "#result'\n",
-      "print\"The density of charge carriers in copper in atoms/m3 is %.1e\" %round(n,3);\n",
-      "\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",
-      "#result\n",
-      "print \"The average time between collisions of conducting electrons in sec.is %.1e\" %t\n",
-      "\n",
-      "#partb\n",
-      "Ef=7.03*1.6*10**-19;           #converting given enrgy to J\n",
-      "\n",
-      "#calculation\n",
-      "Vf=sqrt(2*Ef/m);               #fermi velocity\n",
-      "l=Vf*t;                      #mean free path\n",
-      "\n",
-      "#result\n",
-      "print \"The average mean free path is\",l,\"m =\",round(l*10**9,3),\" nm\"\n"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "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": 1
-    }
-   ],
-   "metadata": {}
-  }
- ]
-}
\ No newline at end of file