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| author | hardythe1 | 2015-06-03 15:27:17 +0530 |
|---|---|---|
| committer | hardythe1 | 2015-06-03 15:27:17 +0530 |
| commit | 47d7279a724246ef7aa0f5359cf417992ed04449 (patch) | |
| tree | c613e5e4813d846d24d67f46507a6a69d1a42d87 /_A_Textbook_Of_Engineering_Physics/Chapter14_1.ipynb | |
| parent | 435840cef00c596d9e608f9eb2d96f522ea8505a (diff) | |
| download | Python-Textbook-Companions-47d7279a724246ef7aa0f5359cf417992ed04449.tar.gz Python-Textbook-Companions-47d7279a724246ef7aa0f5359cf417992ed04449.tar.bz2 Python-Textbook-Companions-47d7279a724246ef7aa0f5359cf417992ed04449.zip | |
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Diffstat (limited to '_A_Textbook_Of_Engineering_Physics/Chapter14_1.ipynb')
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diff --git a/_A_Textbook_Of_Engineering_Physics/Chapter14_1.ipynb b/_A_Textbook_Of_Engineering_Physics/Chapter14_1.ipynb new file mode 100755 index 00000000..1a941a59 --- /dev/null +++ b/_A_Textbook_Of_Engineering_Physics/Chapter14_1.ipynb @@ -0,0 +1,224 @@ +{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:fa946e3f77a5fb13eb7ad900f4bb8618950afc67e42b0d85db2b38e779043158"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter14-Lasers\n"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex1-pg418"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "##Example 14.1\n",
+ "##calculation of intensity of laser beam\n",
+ "\n",
+ "##given values\n",
+ "P=10*10**-3.;##Power in Watt\n",
+ "d=1.3*10**-3.;##diametre in m\n",
+ "A=math.pi*d**2./4.;##area in m**2\n",
+ "\n",
+ "\n",
+ "##calculation\n",
+ "I=P/A;\n",
+ "print'%s %.2f %s'%('intensity (in W/m^2) is',I,'');"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "intensity (in W/m^2) is 7533.96 \n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex2-pg418"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "##Example 14.2\n",
+ "##calculation of intensity of laser beam\n",
+ "\n",
+ "##given values\n",
+ "P=1*10**-3.;##Power in Watt\n",
+ "l=6328*10**-10.;##wavelength in m\n",
+ "A=l**2.;##area in m**2\n",
+ "\n",
+ "\n",
+ "##calculation\n",
+ "I=P/A;\n",
+ "print'%s %.3e %s'%('intensity (in W/m^2) is',I,'');"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "intensity (in W/m^2) is 2.497e+09 \n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex3-pg418"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "##Example 14.3\n",
+ "##calculation of coherence length,bandwidth and line width\n",
+ "\n",
+ "##given values\n",
+ "c=3*10**8.;##velocity of light in m/s\n",
+ "t=.1*10**-9.;##timedivision in s\n",
+ "l=6238*10**-10.;##wavelength in m\n",
+ "\n",
+ "##calculation\n",
+ "x=c*t;\n",
+ "print'%s %.2f %s'%('coherence length (in m) is',x,'');\n",
+ "d=1./t;\n",
+ "print'%s %.3e %s'%('bandwidth (in Hz) is',d,'');\n",
+ "y=l**2*d/c;##line width in m\n",
+ "print'%s %.2f %s'%('line width(in armstrong )is',y*10**10,'');"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "coherence length (in m) is 0.03 \n",
+ "bandwidth (in Hz) is 1.000e+10 \n",
+ "line width(in armstrong )is 0.13 \n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex4-pg418"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "##Example 14.4\n",
+ "##calculation of frequency difference\n",
+ "\n",
+ "##given values\n",
+ "c=3*10**8;##velocity of light in m/s\n",
+ "l=.5;##distance in m\n",
+ "\n",
+ "##calculation\n",
+ "f=c/(2*l);##in hertz\n",
+ "print'%s %.2f %s'%('frequency difference (in MHz) is',f/10**6,'');\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "frequency difference (in MHz) is 300.00 \n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex5-pg418"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "##Example 14.5\n",
+ "##calculation of no of cavity modes\n",
+ "\n",
+ "##given values\n",
+ "c=3*10**8.;##velocity of light in m/s\n",
+ "n=1.75;##refractive index\n",
+ "l=2*10**-2;##length of ruby rod in m\n",
+ "x=6943*10**-10.;##wavelength in m\n",
+ "y=5.3*10**-10.;##spread of wavelength in m\n",
+ "\n",
+ "##calculation\n",
+ "d=c/n/l;\n",
+ "f=c*y/x**2.;\n",
+ "m=f/d;\n",
+ "print'%s %.2f %s'%('no of modes is',m,'');\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "no of modes is 38.48 \n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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