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-{
- "metadata": {
-  "name": "",
-  "signature": "sha256:550f2c4f76d815d509a9a81031b8891ad0f830da6727cb50a9ec9ad3c5c39d1e"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
-  {
-   "cells": [
-    {
-     "cell_type": "heading",
-     "level": 1,
-     "metadata": {},
-     "source": [
-      "Chapter5 Electron Oprtics"
-     ]
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Ex1-pg 72"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "import math\n",
-      "##Example 5.1\n",
-      "##Electron refraction, calculation of potential difference\n",
-      "\n",
-      "##given values\n",
-      "V1=250.;##potential by which electrons are accelerated in Volts\n",
-      "alpha1=50*math.pi/180.;##in degree\n",
-      "alpha2=30*math.pi/180.;##in degree\n",
-      "b=math.sin(alpha1)/math.sin(alpha2);\n",
-      "##calculation\n",
-      "V2=(b**2.)*V1;\n",
-      "a=V2-V1;\n",
-      "print'%s %.1f %s'%('potential difference(in volts) is:',a,'');\n",
-      "\n",
-      "\n"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "potential difference(in volts) is: 336.8 \n"
-       ]
-      }
-     ],
-     "prompt_number": 1
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Ex2 -pg94"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "\n",
-      "##Example 5.2&5.3\n",
-      "import math\n",
-      "##Cyclotron, calculation of magnetic induction,maximum energy\n",
-      "##given values\n",
-      "f=12*(10**6);##oscillator frequency in Hertz\n",
-      "r=.53;##radius of the dee in metre\n",
-      "q=1.6*10**-19;##Deuteron charge in C\n",
-      "m=3.34*10**-27;##mass of deuteron in kg\n",
-      "##calculation\n",
-      "B=2*math.pi*f*m/q;##\n",
-      "print'%s %.2f %s'%('magnetic induction (in Tesla) is:',B,'');\n",
-      "\n"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "magnetic induction (in Tesla) is: 1.57 \n"
-       ]
-      }
-     ],
-     "prompt_number": 7
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Ex3-pg94"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "import math\n",
-      "##Cyclotron, calculation of magnetic induction,maximum energy\n",
-      "##given values\n",
-      "f=12.*(10**6);##oscillator frequency in Hertz\n",
-      "r=.53;##radius of the dee in metre\n",
-      "q=1.6*10**-19;##Deuteron charge in C\n",
-      "m=3.34*10**-27;##mass of deuteron in kg\n",
-      "##calculation\n",
-      "B=2*math.pi*f*m/q;##\n",
-      "\n",
-      "E=B**2*q**2.*r**2./(2.*m);\n",
-      "print'%s %.2e %s'%('maximum energy to which deuterons can be accelerated (in J) is',E,'')\n",
-      "E1=E*6.24*10**18/10**6.;##conversion of energy into MeV\n",
-      "print'%s %.1f %s'%('maximum energy to which deuterons can be accelerated (in MeV) is',E1,'');\n",
-      "print('in text book ans is given wrong')"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "maximum energy to which deuterons can be accelerated (in J) is 2.67e-12 \n",
-        "maximum energy to which deuterons can be accelerated (in MeV) is 16.6 \n",
-        "in text book ans is given wrong\n"
-       ]
-      }
-     ],
-     "prompt_number": 5
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Ex4-pg99"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "import math\n",
-      "##Example 5.4\n",
-      "##Mass spectrograph, calculation of linear separation of lines formed on photographic plates\n",
-      "\n",
-      "##given values;\n",
-      "E=8.*10**4;##electric field in V/m\n",
-      "B=.55##magnetic induction in Wb/m*2\n",
-      "q=1.6*10**-19;##charge of ions\n",
-      "m1=20.*1.67*10**-27;##atomic mass of an isotope of neon\n",
-      "m2=22.*1.67*10**-27;##atomic mass of other isotope of neon\n",
-      "##calculation\n",
-      "x=2*E*(m2-m1)/(q*B**2);##\n",
-      "print'%s %.3f %s'%('separation of lines (in metre) is:',x,'')\n"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "separation of lines (in metre) is: 0.011 \n"
-       ]
-      }
-     ],
-     "prompt_number": 3
-    }
-   ],
-   "metadata": {}
-  }
- ]
-}
-\ No newline at end of file