{ "metadata": { "name": "", "signature": "sha256:8575441dfc9f46104394a83a9c4613d36928a495b4284fab191e2ca7cb407033" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "heading", "level": 1, "metadata": {}, "source": [ "Chapter 2: Introduction to Quantum Mechanics" ] }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 2.1, Page 47" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#Variable declaration\n", "lamda=0.708*10**-8# cm\n", "h=6.625*10**-34# J*s Plank's constant\n", "c=3.0*10**10# cm/s\n", "e=1.6*10**-19# eV\n", "\n", "#Calculations&Results\n", "E=(h*c)/lamda# E=hv=hc/lamda\n", "print \"The value of E is %.2e J\"%E\n", "E=E/e\n", "print \"The value of E is %.2e eV\"%E" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The value of E is 2.81e-15 J\n", "The value of E is 1.75e+04 eV\n" ] } ], "prompt_number": 2 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 2.2,Page 49" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#Variable declaration\n", "m=9.11*10**-31# kg*m/s\n", "v=10**5#m/s\n", "h=6.625*10**-34#js\n", "\n", "#Calculations&Results\n", "p=m*v\n", "print \"momentum is %.2e\"%p\n", "lamda=h/p\n", "print \"de broglie wavelength in meter is %.2e\"%(lamda)" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "momentum is 9.11e-26\n", "de broglie wavelength in meter is 7.27e-09\n" ] } ], "prompt_number": 3 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 2.3, Page 58" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "\n", "#Variable declaration\n", "a=5*10**-10# a=5A = 5*10**-8cm\n", "h=1.054*10**-34# J*s Planck's constant \n", "m=9.11*10**-31# kg*m/s\n", "e=1.6*10**-19# eV\n", "\n", "#Calculations&Results\n", "print \"The energy levels are:\"\n", "for n in range(1,4):\n", " En=((h**2*n**2*math.pi**2)/(2*m*a**2))/e\n", " print \"For n = %d, E = %.2f eV\"%(n,En)\n", "\n", " " ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The energy levels are:\n", "For n = 1, E = 1.50 eV\n", "For n = 2, E = 6.02 eV\n", "For n = 3, E = 13.54 eV\n" ] } ], "prompt_number": 4 }, { "cell_type": "code", "collapsed": false, "input": [], "language": "python", "metadata": {}, "outputs": [] } ], "metadata": {} } ] }