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-{
- "metadata": {
-  "name": "Chapter15"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
-  {
-   "cells": [
-    {
-     "cell_type": "heading",
-     "level": 1,
-     "metadata": {},
-     "source": [
-      "Chapter 15:The General Theory of Relativity"
-     ]
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 15.1, Page 491"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "#initiation of variable\n",
-      "w=121.5;   #lambda\n",
-      "G=6.67*10**-11; #Various given values and constants\n",
-      "M= 1.99*10**30; \n",
-      "R= 6.96*10**8;\n",
-      "c=3*10**8;\n",
-      "\n",
-      "#calculation\n",
-      "k= G*M/(R*c**2);    #(delLambda)/(lambda)\n",
-      "delw=k*w;           #del(lambda)\n",
-      "\n",
-      "#result\n",
-      "print \"The change in wavelength due to gravitational shift in pm is\",round(delw*10**3,3);\n",
-      "\n",
-      "#part3\n",
-      "k=5.5*10**-5;#due to thermal Doppler broadening effect\n",
-      "delw=k*w;\n",
-      "\n",
-      "#result\n",
-      "print \"The change in wavelength due to thermal Doppler broadening effect in pm is\",round(delw*10**3,3);"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        " The change in wavelength due to gravitational shift in pm is 0.257\n",
-        "The change in wavelength due to thermal Doppler broadening effect in pm is 6.683\n"
-       ]
-      }
-     ],
-     "prompt_number": 2
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 15.2, Page 501"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "#initiation of variable\n",
-      "mp=938.280;   #mass of various particles\n",
-      "me=0.511;\n",
-      "m2h=1875.628;\n",
-      "\n",
-      "#calculation\n",
-      "mic2=2*mp;           #mass energy on L.H.S\n",
-      "mfc2=m2h+me;  #mass energy on R.H.S\n",
-      "Q=mic2-mfc2;    #Q value of reation\n",
-      "pc=Q;\n",
-      "mc2=1875.628;\n",
-      "K=(pc**2)/(2*mc2);     #kinetic threshold energy\n",
-      "Emax=Q-K;        #maximum energy \n",
-      "\n",
-      "#result\n",
-      "print \"The maximum neutrino energy in MeV is\",round(Emax,3);"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The maximum neutrino energy in MeV is 0.421\n"
-       ]
-      }
-     ],
-     "prompt_number": 3
-    }
-   ],
-   "metadata": {}
-  }
- ]
-}
-\ No newline at end of file