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diff --git a/Modern_Physics/Chapter9.ipynb b/Modern_Physics/Chapter9.ipynb new file mode 100755 index 00000000..52c8dc08 --- /dev/null +++ b/Modern_Physics/Chapter9.ipynb @@ -0,0 +1,148 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:a22a4cd44988289c63c9da64c71766c244fd20324a2c5a80b53d48938212c4cc" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 9: Atomic Structure" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 9.1, page no. 300" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "\n", + "Ub = 9.27 * 10 ** -24 #(J/T)\n", + "B = 1.00 #magnetic field strength (T)\n", + "h = 6.58 * 10 ** -16 #Planck's constant (eV.s)\n", + "e = 1.6 * 10 ** -19 #electron charge (C)\n", + "\n", + "#Calculation\n", + "\n", + "hwl = Ub * B / e\n", + "wl = hwl / h\n", + "\n", + "#results\n", + "\n", + "print \"The magnetic energy is\",round(hwl/10**-5,2),\"x 10^-5 eV and the Larmor frequency is\",round(wl/10**10,2),\"x 10^10 rad/s.\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The magnetic energy is 5.79 x 10^-5 eV and the Larmor frequency is 8.81 x 10^10 rad/s.\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 9.4, page no. 311" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "#Variable declaration\n", + "\n", + "l2 = 589.592 #sodium doublet wavelength (nm)\n", + "l1 = 588.995 #sodium doublet wavelength (nm)\n", + "hc = 1240 #planck's constant X speed of light (eV.nm)\n", + "\n", + "#Calculation\n", + "\n", + "dE = hc * (l2-l1)/(l2*l1)\n", + "\n", + "#Results\n", + "\n", + "print \"dE =\",round(dE/10**-3,2),\"X 10^-3 eV represents the spin orbit splitting of the initial levels.\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "dE = 2.13 X 10^-3 eV represents the spin orbit splitting of the initial levels.\n" + ] + } + ], + "prompt_number": 6 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 9.6, page no. 317" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "import math\n", + "\n", + "#Variable declaration\n", + "\n", + "E = -5.14 #Energy of the 3s electron in sodium (eV)\n", + "Eh = 13.6 #energy of the 3s electron in hydrogen (eV)\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "Zeff = 3 * math.sqrt(-E/Eh)\n", + "\n", + "#Results\n", + "\n", + "print \"Zeff for the 3s electron in sodium is\",round(Zeff,2)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Zeff for the 3s electron in sodium is 1.84\n" + ] + } + ], + "prompt_number": 10 + } + ], + "metadata": {} + } + ] +}
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