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diff --git a/Engineering_Physics/Chapter_3.ipynb b/Engineering_Physics/Chapter_3.ipynb deleted file mode 100755 index eaf6dcb1..00000000 --- a/Engineering_Physics/Chapter_3.ipynb +++ /dev/null @@ -1,325 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:638145e2db582b1570b31e3d891635b15bb11943d1ff2ba0aa0dc17ebaf02200" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Fibre Optics" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 3.1, Page number 98 " - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#importing modules\n", - "import math\n", - "\n", - "#Variable declaration\n", - "n1=1.6; #refractive index of core\n", - "n2=1.5; #refractive index of cladding\n", - "\n", - "#Calculation\n", - "NA=math.sqrt((n1**2)-(n2**2));\n", - "NA=math.ceil(NA*10**4)/10**4; #rounding off to 4 decimals\n", - "\n", - "#Result\n", - "print(\"the numerical aperture of the fibre is\",NA);\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('the numerical aperture of the fibre is', 0.5568)\n" - ] - } - ], - "prompt_number": 4 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 3.2, Page number 98 " - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#importing modules\n", - "import math\n", - "\n", - "#Variable declaration\n", - "n1=1.54; #refractive index of core\n", - "n2=1.5; #refractive index of cladding\n", - "n0=1;\n", - "\n", - "#Calculation\n", - "NA=math.sqrt((n1**2)-(n2**2)); #numerical aperture of fibre\n", - "NA=math.ceil(NA*10**5)/10**5; #rounding off to 5 decimals\n", - "alpha=math.asin(NA/n0); #acceptance angle in radians\n", - "alpha=alpha*57.2957795; #converting radians to degrees\n", - "alpha=math.ceil(alpha*10**5)/10**5; #rounding off to 5 decimals\n", - "deg=int(alpha); #converting to degrees\n", - "t=60*(alpha-deg); \n", - "mi=int(t); #converting to minutes\n", - "sec=60*(t-mi); #converting to seconds\n", - "sec=math.ceil(sec*10**3)/10**3; #rounding off to 3 decimals\n", - "\n", - "#Result\n", - "print(\"the numerical aperture of the fibre is\",NA);\n", - "print(\"the acceptance angle of the fibre in degrees is\",alpha);\n", - "print(\"acceptance angle of the fibre is\",deg,\"degrees\",mi,\"minutes\",sec,\"seconds\");\n", - "\n", - "#answer for the angle given in the book is wrong" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('the numerical aperture of the fibre is', 0.34872)\n", - "('the acceptance angle of the fibre in degrees is', 20.40905)\n", - "('acceptance angle of the fibre is', 20, 'degrees', 24, 'minutes', 32.581, 'seconds')\n" - ] - } - ], - "prompt_number": 7 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 3.3, Page number 99" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#importing modules\n", - "import math\n", - "\n", - "#Variable declaration\n", - "n1=1.6; #refractive index of core\n", - "n2=1.49; #refractive index of cladding\n", - "\n", - "#Calculation\n", - "thetac=math.asin(n2/n1); #critical angle in radians\n", - "thetac=thetac*57.2957795; #converting radians to degrees\n", - "theta_c=math.ceil(thetac*10**3)/10**3; #rounding off to 3 decimals\n", - "deg=int(thetac); #converting to degrees\n", - "t=60*(thetac-deg); \n", - "mi=int(t); #converting to minutes\n", - "sec=60*(t-mi); #converting to seconds\n", - "sec=math.ceil(sec*10**2)/10**2; #rounding off to 2 decimals\n", - "\n", - "#Result\n", - "print(\"the critical angle of the fibre in degrees is\",theta_c);\n", - "print(\"critical angle of the fibre is\",deg,\"degrees\",mi,\"minutes\",sec,\"seconds\");" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('the critical angle of the fibre in degrees is', 68.631)\n", - "('critical angle of the fibre is', 68, 'degrees', 37, 'minutes', 49.85, 'seconds')\n" - ] - } - ], - "prompt_number": 10 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 3.4, Page number 99" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#importing modules\n", - "import math\n", - "\n", - "#Variable declaration\n", - "NA=0.15; #numerical aperture\n", - "n2=1.55; #refractive index of cladding\n", - "n0=1.33; #refractive index of water\n", - "\n", - "#Calculation\n", - "n1=math.sqrt((NA**2)+(n2**2)); #refractive index\n", - "n_1=math.ceil(n1*10**5)/10**5; #rounding off to 5 decimals\n", - "alpha=math.asin(math.sqrt(n1**2-n2**2)/n0); #acceptance angle in radians\n", - "alpha=alpha*57.2957795; #converting radians to degrees\n", - "alphaa=math.ceil(alpha*10**3)/10**3; #rounding off to 3 decimals\n", - "deg=int(alpha); #converting to degrees\n", - "t=60*(alpha-deg); \n", - "mi=int(t); #converting to minutes\n", - "sec=60*(t-mi); #converting to seconds\n", - "sec=math.ceil(sec*10**2)/10**2; #rounding off to 2 decimals\n", - "\n", - "#Result\n", - "print(\"refractive index of the core is\",n_1);\n", - "print(\"the acceptance angle of the fibre in degrees is\",alphaa);\n", - "print(\"acceptance angle of the fibre is\",deg,\"degrees\",mi,\"minutes\",sec,\"seconds\");\n", - "\n", - "#answer for acceptance angle given in the book is wrong" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('refractive index of the core is', 1.55725)\n", - "('the acceptance angle of the fibre in degrees is', 6.476)\n", - "('acceptance angle of the fibre is', 6, 'degrees', 28, 'minutes', 32.55, 'seconds')\n" - ] - } - ], - "prompt_number": 13 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 3.5, Page number 100" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#importing modules\n", - "import math\n", - "\n", - "#Variable declaration\n", - "NA=0.26; #numerical aperture\n", - "n1=1.5; #refractive index of core\n", - "d=100; #core diameter in micro meter\n", - "\n", - "#Calculation\n", - "d=100*(10**-6); #core diameter in metre\n", - "n2=math.sqrt((n1**2)-(NA**2));\n", - "n2=math.ceil(n2*10**5)/10**5; #rounding off to 5 decimals\n", - "\n", - "#Result\n", - "print(\"refractive index of the cladding is\",n2);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('refractive index of the cladding is', 1.4773)\n" - ] - } - ], - "prompt_number": 16 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 3.6, Page number 100" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#importing modules\n", - "import math\n", - "\n", - "#Variable declaration\n", - "NA=0.26; #numerical aperture\n", - "delta=0.015; #refractive index difference\n", - "\n", - "#Calculation\n", - "#NA=math.sqrt(n1**2-n2**2)\n", - "#let A=n1**2-n2**2\n", - "#therefore A=NA**2\n", - "A=NA**2;\n", - "#delta=(n1**2-n2**2)/2*(n1**2)\n", - "#let 2*(n1**2) be B\n", - "#therefore B=A/delta\n", - "B=A/delta;\n", - "n1=math.sqrt(B/2);\n", - "n1=math.ceil(n1*100)/100; #rounding off to 2 decimals\n", - "n2=math.sqrt(n1**2-NA**2);\n", - "n2=math.ceil(n2*10**3)/10**3; #rounding off to 4 decimals\n", - "\n", - "#Result\n", - "print(\"refractive index of the core is\",n1);\n", - "print(\"refractive index of the cladding is\",n2);\n", - "\n", - "#answer for refractive index of cladding given in the book is wrong" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('refractive index of the core is', 1.51)\n", - "('refractive index of the cladding is', 1.488)\n" - ] - } - ], - "prompt_number": 19 - }, - { - "cell_type": "code", - "collapsed": false, - "input": [], - "language": "python", - "metadata": {}, - "outputs": [] - } - ], - "metadata": {} - } - ] -}
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