{ "metadata": { "name": "", "signature": "sha256:f95ad053d0ee60a574142f8a3593f1e9b0c8e0f820af4e56f85cc80fe6a03524" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "heading", "level": 1, "metadata": {}, "source": [ "Chapter 14 Crystal structure" ] }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 14.1 Page no 27" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#Given\n", "a=3.56\n", "\n", "#Calculation\n", "import math\n", "A=a/math.sqrt(2)\n", "\n", "#Result\n", "print\"(a) There are 8 atmos\"\n", "print\"(b) Length is\",round(A,2),\"A\"" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "(a) There are 8 atmos\n", "(b) Length is 2.52 A\n" ] } ], "prompt_number": 4 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 14.6 Page no 28" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#Given\n", "a=3\n", "b=2.0\n", "\n", "#Calculation\n", "import math\n", "d=math.sqrt(a/b)\n", "\n", "#Result\n", "print\"(i) Ratio of intercepts of three axes is 1:1/2:1/3\"\n", "print\"(ii) Ratio of spascing is\",round(d,3)" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "(i) Ratio of intercepts of three axes is 1:1/2:1/3\n", "(ii) Ratio of spascing is 1.225\n" ] } ], "prompt_number": 7 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 14.12 Page no 30" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#Given\n", "c=8\n", "a=3.0\n", "\n", "#Calculation\n", "import math\n", "A=math.sqrt(c/a)\n", "\n", "#Result\n", "print\"A=\",round(A,3)" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "A= 1.633\n" ] } ], "prompt_number": 10 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 14.13 Page no 30" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#Given\n", "v=1.794*10**-28 #m**3\n", "Kb=8.625*10**-5\n", "T=298\n", "A=16.65\n", "\n", "#Calculation\n", "import math\n", "E=math.log(10)*A*2*Kb*T\n", "\n", "#Result\n", "print\"Average energy required is\",round(E,3),\"eV\"" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Average energy required is 1.971 eV\n" ] } ], "prompt_number": 13 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 14.14 Page no 31" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#Given\n", "a=560\n", "Kb=8.625*10**-5\n", "T=586\n", "A=1146\n", "\n", "#Calculation\n", "import math\n", "n=1.4*a/(math.log(10)*Kb*T*A)\n", "\n", "#Result\n", "print\"Ratio is\", round(n,3)" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Ratio is 5.878\n" ] } ], "prompt_number": 23 } ], "metadata": {} } ] }