From c7fe425ef3c5e8804f2f5de3d8fffedf5e2f1131 Mon Sep 17 00:00:00 2001
From: hardythe1
Date: Tue, 7 Apr 2015 15:58:05 +0530
Subject: added books

---
 Modern_Physics_By_G.Aruldas/Chapter4_1.ipynb | 193 +++++++++++++++++++++++++++
 1 file changed, 193 insertions(+)
 create mode 100755 Modern_Physics_By_G.Aruldas/Chapter4_1.ipynb

(limited to 'Modern_Physics_By_G.Aruldas/Chapter4_1.ipynb')

diff --git a/Modern_Physics_By_G.Aruldas/Chapter4_1.ipynb b/Modern_Physics_By_G.Aruldas/Chapter4_1.ipynb
new file mode 100755
index 00000000..350acf21
--- /dev/null
+++ b/Modern_Physics_By_G.Aruldas/Chapter4_1.ipynb
@@ -0,0 +1,193 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:1d6457e2a94e0fa2b026a0acb8ba4fab526573258ee2c274c4328b7f611fb97a"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "4: Wave mechanical concepts"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example number 4.1, Page number 59"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#importing modules\n",
+      "import math\n",
+      "from __future__ import division\n",
+      "\n",
+      "#Variable declaration\n",
+      "h=6.626*10**-34;    #planck's constant(Js)\n",
+      "e=1.6*10**-19;   #conversion factor from J to eV\n",
+      "m=9.1*10**-31;    #mass of electron(kg)\n",
+      "V=1;    #assume\n",
+      "\n",
+      "#Calculation\n",
+      "lamda=h/math.sqrt(2*m*e*V);    #debroglie wavelength(m)\n",
+      "\n",
+      "#Result\n",
+      "print \"debroglie wavelength is math.sqrt(\",int((lamda*10**10)**2),\"/V) angstrom\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "debroglie wavelength is math.sqrt( 150 /V) angstrom\n"
+       ]
+      }
+     ],
+     "prompt_number": 9
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example number 4.2, Page number 59"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#importing modules\n",
+      "import math\n",
+      "from __future__ import division\n",
+      "\n",
+      "#Variable declaration\n",
+      "h=6.626*10**-34;    #planck's constant(Js)\n",
+      "c=3*10**8;    #velocity of light(m/sec)\n",
+      "e=1.6*10**-19;   #conversion factor from J to eV\n",
+      "m=9.1*10**-31;    #mass of electron(kg)\n",
+      "KE=100*10**6;   #kinetic energy(eV)\n",
+      "\n",
+      "#Calculation\n",
+      "p=math.sqrt(2*m*e);     #momentum(kg m/s)\n",
+      "lamda1=h/p;    #debroglie wavelength for 1 eV(m)\n",
+      "lamda2=h*c/(KE*e);    #debroglie wavelength for 100 MeV(m)\n",
+      "\n",
+      "#Result\n",
+      "print \"debroglie wavelength for 1 eV is\",round(lamda1*10**9,1),\"nm\"\n",
+      "print \"debroglie wavelength for 100 MeV is\",round(lamda2*10**15,2),\"*10**-15 m\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "debroglie wavelength for 1 eV is 1.2 nm\n",
+        "debroglie wavelength for 100 MeV is 12.42 *10**-15 m\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example number 4.3, Page number 64"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#importing modules\n",
+      "import math\n",
+      "from __future__ import division\n",
+      "\n",
+      "#Variable declaration\n",
+      "m=9.1*10**-31;    #mass of electron(kg)\n",
+      "v=4*10**6;    #speed of electron(m/s)\n",
+      "sp=1/100;     #speed precision\n",
+      "hbar=1.05*10**-34;  \n",
+      "\n",
+      "#Calculation\n",
+      "p=m*v;   #momentum(kg m/s)\n",
+      "deltap=p*sp;    #uncertainity in momentum(kg m/s)\n",
+      "deltax=hbar/(2*deltap);   #precision in position(m)\n",
+      "\n",
+      "#Result\n",
+      "print \"precision in position is\",round(deltax*10**9,2),\"nm\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "precision in position is 1.44 nm\n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example number 4.4, Page number 64"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#importing modules\n",
+      "import math\n",
+      "from __future__ import division\n",
+      "\n",
+      "#Variable declaration\n",
+      "c=3*10**8;    #velocity of light(m/sec)\n",
+      "lamda=4000*10**-10;    #wavelength(m)\n",
+      "deltat=10**-8;    #average lifetime(s)\n",
+      "\n",
+      "#Calculation\n",
+      "delta_lamda=lamda**2/(4*math.pi*c*deltat);   #width of line(m)\n",
+      "\n",
+      "#Result\n",
+      "print \"width of line is\",round(delta_lamda*10**15,2),\"*10**-15 m\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "width of line is 4.24 *10**-15 m\n"
+       ]
+      }
+     ],
+     "prompt_number": 16
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file
-- 
cgit