Revised list of TBCs

1 files changed, 0 insertions, 180 deletions

diff --git a/Modern_Physics/Chapter10_1.ipynb b/Modern_Physics/Chapter10_1.ipynb
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-{
- "metadata": {
-  "name": ""
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
-  {
-   "cells": [
-    {
-     "cell_type": "heading",
-     "level": 1,
-     "metadata": {},
-     "source": [
-      "Statistical Physics"
-     ]
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.2 Page 307"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "#initiation of variable\n",
-      "from math import sqrt\n",
-      "#The solution is purely theoretical and involves a lot of approximations.\n",
-      "print\"The value of shift in frequency was found out to be delf=7.14*fo*10^-7*sqrt(T) for a star composing of hydrogen atoms at a temperature T.\";\n",
-      "T=6000.0;                       #temperature for sun\n",
-      "delf=7.14*10**-7*sqrt(T);#change in frequency\n",
-      "\n",
-      "#result\n",
-      "print\"The value of frequency shift for sun(at 6000 deg. temperature) comprsing of hydrogen atoms is\",delf,\" times the frequency of the light.\""
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The value of shift in frequency was found out to be delf=7.14*fo*10^-7*sqrt(T) for a star composing of hydrogen atoms at a temperature T.\n",
-        "The value of frequency shift for sun(at 6000 deg. temperature) comprsing of hydrogen atoms is 5.53062021838e-05  times the frequency of the light.\n"
-       ]
-      }
-     ],
-     "prompt_number": 2
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.3 Page 309"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "#initiation of variable\n",
-      "from math import sqrt,pi, exp, log\n",
-      "kT=0.0252;E=10.2                              # at room temperature, kT=0.0252 standard value and given value of E\n",
-      "\n",
-      "#calculation\n",
-      "n2=2;n1=1; g2=2*(n2**2);g1=2*(n1**2);           #values for ground and excited states\n",
-      "t=(g2/g1)*exp(-E/kT);                         #fraction of atoms\n",
-      "\n",
-      "#result\n",
-      "print\"The number of hydrogen atoms required is %.1e\" %(1.0/t),\" which weighs %.1e\" %((1/t)*(1.67*10**-27)),\"Kg\"\n",
-      "\n",
-      "#partb\n",
-      "t=0.1/0.9;k=8.65*10**-5                          #fracion of atoms in case-2 is given\n",
-      "T=-E/(log(t/(g2/g1))*k);                        #temperature\n",
-      "\n",
-      "#result\n",
-      "print\"The value of temperature at which 1/10 atoms are in excited state in K is %.1e\" %round(T,3);"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The number of hydrogen atoms required is 1.5e+175  which weighs 2.5e+148 Kg\n",
-        "The value of temperature at which 1/10 atoms are in excited state in K is 3.3e+04\n"
-       ]
-      }
-     ],
-     "prompt_number": 1
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.4 Page 311"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "#initiation of variable\n",
-      "from math import log\n",
-      "#theoritical part a\n",
-      "print'The energy of interaction with magnetic field is given by uB and the degeneracy of the states are +-1/2 which are identical.\\nThe ratio is therefore pE2/pE1 which gives e^(-2*u*B/k*T)';\n",
-      "#partb\n",
-      "uB=5.79*10**-4;        #for a typical atom\n",
-      "t=1.1;k=8.65*10**-5;   #ratio and constant k\n",
-      "\n",
-      "#calculation\n",
-      "T=2*uB/(log(t)*k);    #temperature\n",
-      "\n",
-      "#result\n",
-      "print\"The value of temperature ar which the given ratio exists in K is\",round(T,3);"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The energy of interaction with magnetic field is given by uB and the degeneracy of the states are +-1/2 which are identical.\n",
-        "The ratio is therefore pE2/pE1 which gives e^(-2*u*B/k*T)\n",
-        "The value of temperature ar which the given ratio exists in K is 140.46\n"
-       ]
-      }
-     ],
-     "prompt_number": 8
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.5 Page 313"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "#initiation of variable\n",
-      "from math import pi\n",
-      "p=0.971; A=6.023*10**23; m=23.0;    # various given values and constants\n",
-      "\n",
-      "#calculation\n",
-      "c= (p*A/m)*10**6;                   # atoms per unit volume\n",
-      "hc=1240.0; mc2=0.511*10**6;           # hc=1240 eV.nm\n",
-      "E= ((hc**2)/(2*mc2))*(((3/(8*pi))*c)**(2.0/3)); #value of fermi energy\n",
-      "\n",
-      "#result\n",
-      "print\"The fermi energy for sodium is\",round(E*10**-18,4),\"eV\";#multiply by 10^-18 to convert metres^2 term to nm^2"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The fermi energy for sodium is 3.1539 eV\n"
-       ]
-      }
-     ],
-     "prompt_number": 12
-    }
-   ],
-   "metadata": {}
-  }
- ]
-}
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