From 6279fa19ac6e2a4087df2e6fe985430ecc2c2d5d Mon Sep 17 00:00:00 2001 From: kinitrupti Date: Fri, 12 May 2017 18:53:46 +0530 Subject: Removed duplicates --- .../Chapter2_1.ipynb | 295 --------------------- 1 file changed, 295 deletions(-) delete mode 100755 backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter2_1.ipynb (limited to 'backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter2_1.ipynb') diff --git a/backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter2_1.ipynb b/backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter2_1.ipynb deleted file mode 100755 index 59d9ea57..00000000 --- a/backup/Modern_Physics_By_G.Aruldas_version_backup/Chapter2_1.ipynb +++ /dev/null @@ -1,295 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:f048d58df41f2578c151ef59f03652004b6758b9e666d170255be2c66115bfe2" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "2: Particle nature of radiation" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 2.1, Page number 28" - ] - }, - { - "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", - "new=100*10**6; #frequency(Hz)\n", - "P=100*10**3; #power(watt)\n", - "\n", - "#Calculation\n", - "E=h*new; #quantum of energy(J)\n", - "n=P/E; #number of quanta emitted(per sec)\n", - "\n", - "#Result\n", - "print \"number of quanta emitted is\",round(n/10**29,2),\"*10**29 per sec\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "number of quanta emitted is 15.09 *10**29 per sec\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 2.2, Page number 31" - ] - }, - { - "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", - "lamda=400*10**-9; #wavelength(m)\n", - "e=1.6*10**-19; #conversion factor from J to eV\n", - "w0=2.28; #work function(eV)\n", - "m=9.1*10**-31; #mass of electron(kg)\n", - "\n", - "#Calculation\n", - "E=h*c/(lamda*e); #energy(eV)\n", - "KEmax=E-w0; #maximum kinetic energy(eV)\n", - "v2=2*KEmax*e/m; \n", - "v=math.sqrt(v2); #velocity(m/s)\n", - "\n", - "#Result\n", - "print \"maximum kinetic energy is\",round(KEmax,3),\"eV\"\n", - "print \"velocity of photoelectrons is\",round(v/10**5,2),\"*10**5 m/s\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "maximum kinetic energy is 0.826 eV\n", - "velocity of photoelectrons is 5.39 *10**5 m/s\n" - ] - } - ], - "prompt_number": 6 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 2.3, Page number 31" - ] - }, - { - "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", - "lamda=2000*10**-10; #wavelength(m)\n", - "e=1.6*10**-19; #conversion factor from J to eV\n", - "w0=4.2; #work function(eV)\n", - "\n", - "#Calculation\n", - "lamda0=h*c/(w0*e); #cut off wavelength(m)\n", - "E=h*c/(lamda*e); #energy(eV)\n", - "sp=E-w0; #stopping potential(eV)\n", - "\n", - "#Result\n", - "print \"cut off wavelength is\",int(lamda0*10**10),\"angstrom\"\n", - "print \"stopping potential is\",round(sp,2),\"V\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "cut off wavelength is 2958 angstrom\n", - "stopping potential is 2.01 V\n" - ] - } - ], - "prompt_number": 8 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 2.4, Page number 33" - ] - }, - { - "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", - "lamda=0.2*10**-9; #wavelength(m)\n", - "\n", - "#Calculation\n", - "p=h/lamda; #momentum(kg m/s)\n", - "m=p/c; #effective mass(kg)\n", - "\n", - "#Result\n", - "print \"momentum is\",round(p*10**24,1),\"*10**-24 kg m/s\"\n", - "print \"effective mass is\",round(m*10**32,1),\"*10**-32 kg\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "momentum is 3.3 *10**-24 kg m/s\n", - "effective mass is 1.1 *10**-32 kg\n" - ] - } - ], - "prompt_number": 11 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 2.5, Page number 35" - ] - }, - { - "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", - "lamda=0.15; #wavelength(nm)\n", - "m0=9.1*10**-31; #mass of electron(kg)\n", - "theta1=0; #scattering angle1(degrees)\n", - "theta2=90; #scattering angle2(degrees)\n", - "theta3=180; #scattering angle3(degrees)\n", - "\n", - "#Calculation\n", - "theta1=theta1*math.pi/180; #scattering angle1(radian)\n", - "theta2=theta2*math.pi/180; #scattering angle2(radian)\n", - "theta3=theta3*math.pi/180; #scattering angle3(radian)\n", - "lamda_dash1=lamda+(h*(1-math.cos(theta1))/(m0*c)); #wavelength at 0(nm)\n", - "lamda_dash2=lamda+(10**9*h*(1-math.cos(theta2))/(m0*c)); #wavelength at 90(nm)\n", - "lamda_dash3=lamda+(10**9*h*(1-math.cos(theta3))/(m0*c)); #wavelength at 180(nm)\n", - "\n", - "#Result\n", - "print \"wavelength at 0 degrees is\",lamda_dash1,\"nm\"\n", - "print \"wavelength at 90 degrees is\",round(lamda_dash2,3),\"nm\"\n", - "print \"wavelength at 180 degrees is\",round(lamda_dash3,3),\"nm\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "wavelength at 0 degrees is 0.15 nm\n", - "wavelength at 90 degrees is 0.152 nm\n", - "wavelength at 180 degrees is 0.155 nm\n" - ] - } - ], - "prompt_number": 18 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 2.6, Page number 36" - ] - }, - { - "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", - "E=2*0.511*10**6; #rest energy(eV)\n", - "\n", - "#Calculation\n", - "lamda=h*c/(E*e); #wavelength of photon(m)\n", - "\n", - "#Result\n", - "print \"wavelength of photon is\",round(lamda*10**12,2),\"*10**-12 m\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "wavelength of photon is 1.22 *10**-12 m\n" - ] - } - ], - "prompt_number": 21 - } - ], - "metadata": {} - } - ] -} \ No newline at end of file -- cgit