From fffcc90da91b66ee607066d410b57f34024bd1de Mon Sep 17 00:00:00 2001
From: Jovina Dsouza
Date: Mon, 7 Jul 2014 16:34:28 +0530
Subject: adding book

---
 Concepts_Of_Modern_Physics/Chapter_7.ipynb | 184 +++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100755 Concepts_Of_Modern_Physics/Chapter_7.ipynb

(limited to 'Concepts_Of_Modern_Physics/Chapter_7.ipynb')

diff --git a/Concepts_Of_Modern_Physics/Chapter_7.ipynb b/Concepts_Of_Modern_Physics/Chapter_7.ipynb
new file mode 100755
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--- /dev/null
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@@ -0,0 +1,184 @@
+{
+ "metadata": {
+  "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 7:Many electron Atoms"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.1,Page no:230"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration \n",
+      "r= 5*(10**(-17))  #radius of spherical electron, m\n",
+      "Me= 9.1*(10**(-31))  #mass of electron, kg\n",
+      "h= 6.63*(10**(-34))  #Planck's constant, J.s\n",
+      "\n",
+      "#Calculation\n",
+      "import math\n",
+      "hbar= h/(2*(math.pi))  #reduced Planck's constant, J.s\n",
+      "v= (5*math.sqrt(3)/4)*(hbar/(Me*r))  #using Eqn 7.1, Page 230\n",
+      "c= 3*(10**8)  #velocity of light, m/s\n",
+      "v= v/c  #converting in terms of c, m/s\n",
+      "\n",
+      "#Result\n",
+      "print\"The velocity of electron in times of c is:%.3g\"%v,\"c\"\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The velocity of electron in times of c is:1.67e+04 c\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.2,Page no:241"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration \n",
+      "n= 2  #outer (2s) orbit of lithium\n",
+      "E2= -5.39  #Ionisation energy of lithium, for n=2 eV\n",
+      "E1= -13.6  #for n=1, eV\n",
+      "\n",
+      "#Calculation\n",
+      "Z= n*(math.sqrt(E2/E1)) #modification factor for effective charge\n",
+      "e= 1.6*(10**(-19))  #charge of an electron, C\n",
+      "Ceffective = Z*e \n",
+      " \n",
+      "#Result    \n",
+      "print\"The effective charge is: \",round(Ceffective/e,2),\"e or%.3g\"%Ceffective,\"C\"\n",
+      " \n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The effective charge is:  1.26 e or2.01e-19 C\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.3,Page no:248"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration \n",
+      "n= 2  #for 2p state\n",
+      "Ao= 5.29*(10**(-11))  #Bohr's orbit for n=1, m\n",
+      "r= (n**2)*Ao  #orbital radius, m\n",
+      "f= 8.4*(10**14)  #frequency of revolution, Hz ,using Eqn 4.4\n",
+      "\n",
+      "#Calculation\n",
+      "Mo= 4*(math.pi)*(10**(-7))  #Magnetic constant, T.m/A\n",
+      "e= 1.6*(10**(-19))  #charge of an electron, C\n",
+      "B= (Mo*f*e)/(2*r)  #Magnetic field, T\n",
+      "Mb= 9.27*(10**(-24))  #Bohr Magneton, J/T\n",
+      "Um= Mb*B  #Magnetic energy, J\n",
+      "Um= Um/e  #converting to eV\n",
+      "\n",
+      "#Result\n",
+      "print\"The magnetic energy for electron  is:%.2g\"%Um,\"eV\"\n",
+      "print\"\\nThe energy difference is twice this,which is:%.2g\"%(2*Um),\"eV\"\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The magnetic energy for electron  is:2.3e-05 eV\n",
+        "\n",
+        "The energy difference is twice this,which is:4.6e-05 eV\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.8,Page no:257"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration \n",
+      "l= 0.180  #wavelength, nm\n",
+      "l= l* 10**(-9)  #converting to m\n",
+      "c= 3*(10**8)  #velocity of light, m/s\n",
+      "\n",
+      "#Calculation\n",
+      "f= c/l  #frequency, Hz\n",
+      "R= 1.097*(10**7)  #Rydberg's constant, per m\n",
+      "Z= 1+(math.sqrt((4*f)/(3*c*R)))  #using Eqn 7.21\n",
+      "\n",
+      "#Result\n",
+      "print\"The element has atomic number: \",round(Z)\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The element has atomic number:  27.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file
-- 
cgit