From 6279fa19ac6e2a4087df2e6fe985430ecc2c2d5d Mon Sep 17 00:00:00 2001 From: kinitrupti Date: Fri, 12 May 2017 18:53:46 +0530 Subject: Removed duplicates --- .../Chapter7.ipynb | 258 --------------------- 1 file changed, 258 deletions(-) delete mode 100755 backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter7.ipynb (limited to 'backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter7.ipynb') diff --git a/backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter7.ipynb b/backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter7.ipynb deleted file mode 100755 index 45ed5766..00000000 --- a/backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter7.ipynb +++ /dev/null @@ -1,258 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:1e02050388cdd15ca19e058c38c307c0fd0b145ef71769674c045940ea70b08b" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "7: Atomic physics" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 7.1, Page number 113" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#importing modules\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable declaration\n", - "mewB=9.27*10**-24;\n", - "B=3; #magnetic field(T)\n", - "e=1.6*10**-19; #conversion factor from J to eV\n", - "\n", - "#Calculation\n", - "E=2*mewB*B/e; #energy difference(eV)\n", - "\n", - "#Result\n", - "print \"energy difference is\",round(E*10**4,2),\"*10**-4 eV\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "energy difference is 3.48 *10**-4 eV\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 7.3, Page number 118" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#importing modules\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable declaration\n", - "l=2;\n", - "s=1/2;\n", - "j1=2+(1/2);\n", - "j2=2-(1/2);\n", - "\n", - "#Calculation\n", - "L=math.sqrt(l*(l+1)); #value of L(hbar)\n", - "S=math.sqrt(s*(s+1)); #value of S(hbar)\n", - "J1=math.sqrt(j1*(j1+1)); #value of J for D5/2 state(hbar)\n", - "J2=math.sqrt(j2*(j2+1)); #value of J for D3/2 state(hbar)\n", - "costheta1=((j1*(j1+1))-(l*(l+1))-(s*(s+1)))/(2*L*S);\n", - "theta1=math.acos(costheta1); #angle between L and S for D5/2(radian)\n", - "theta1=theta1*180/math.pi; #angle between L and S for D5/2(degrees)\n", - "costheta2=((j2*(j2+1))-(l*(l+1))-(s*(s+1)))/(2*L*S);\n", - "theta2=math.acos(costheta2); #angle between L and S for D3/2(radian)\n", - "theta2=theta2*180/math.pi; #angle between L and S for D3/2(degrees)\n", - "\n", - "#Result\n", - "print \"value of L is\",round(L,3),\"hbar\"\n", - "print \"value of S is\",round(S,3),\"hbar\"\n", - "print \"value of J for D5/2 state is\",round(J1,3),\"hbar\"\n", - "print \"value of J for D3/2 state is\",round(J2,3),\"hbar\"\n", - "print \"angle between L and S for D5/2 is\",round(theta1,2),\"degrees\"\n", - "print \"angle between L and S for D3/2 is\",int(theta2),\"degrees\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "value of L is 2.449 hbar\n", - "value of S is 0.866 hbar\n", - "value of J for D5/2 state is 2.958 hbar\n", - "value of J for D3/2 state is 1.936 hbar\n", - "angle between L and S for D5/2 is 61.87 degrees\n", - "angle between L and S for D3/2 is 135 degrees\n" - ] - } - ], - "prompt_number": 4 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 7.10, Page number 136" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#importing modules\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable declaration\n", - "S=1;\n", - "L=1; \n", - "J=1;\n", - "\n", - "#Calculation\n", - "a=L*(L+1)-(L*(L+1));\n", - "g1=1+(a/(2*L*(L+1))); #lande's g-factor for pure orbital angular momentum\n", - "b=(S*(S+1)+(S*(S+1)))/(2*S*(S+1)); #lande's g-factor for pure spin angular momentum\n", - "g2=1+b; #lande's g-factor for pure spin angular momentum\n", - "c=J*(J+1)+(S*(S+1))-(L*(L+1));\n", - "g3=1+(c/(2*J*(J+1))); #lande's g-factor for state 3P1\n", - "\n", - "#Result\n", - "print \"lande's g-factor for pure orbital angular momentum is\",g1\n", - "print \"ande's g-factor for pure spin angular momentum is\",g2\n", - "print \"lande's g-factor for state 3P1 is\",g3" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "lande's g-factor for pure orbital angular momentum is 1.0\n", - "ande's g-factor for pure spin angular momentum is 2.0\n", - "lande's g-factor for state 3P1 is 1.5\n" - ] - } - ], - "prompt_number": 6 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 7.12, Page number 141" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#importing modules\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable declaration\n", - "EKalpha=21.99; #energy in silver(keV)\n", - "EKbita=25.145; #energy in silver(keV)\n", - "E=-25.514; #energy of n=1 state(keV)\n", - " \n", - "#Calculation\n", - "ELalpha=EKbita-EKalpha; #energy of L alpha X ray(keV)\n", - "E2=-E-EKalpha; #binding energy of L electron(keV)\n", - "\n", - "#Result\n", - "print \"energy of L alpha X ray is\",ELalpha,\"keV\"\n", - "print \"binding energy of L electron is\",E2,\"keV\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "energy of L alpha X ray is 3.155 keV\n", - "binding energy of L electron is 3.524 keV\n" - ] - } - ], - "prompt_number": 8 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 7.13, Page number 141" - ] - }, - { - "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", - "Z=11; #atomic number\n", - "R=1.097*10**7; #value of R(per m)\n", - "\n", - "#Calculation\n", - "E=(3*h*c*R*(Z-1)**2)/4; #energy of k aplha X-ray(keV)\n", - "\n", - "#Result\n", - "print \"energy of k aplha X-ray is\",round(E*10**16,2),\"*10**-16 keV\"\n", - "print \"answer given in the book is wrong\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "energy of k aplha X-ray is 1.64 *10**-16 keV\n", - "answer given in the book is wrong\n" - ] - } - ], - "prompt_number": 12 - } - ], - "metadata": {} - } - ] -} \ No newline at end of file -- cgit