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diff --git a/Engineering_Physics_by_S_D_Jain_and_G_G_Sahasrabudhe/5-Polarisation.ipynb b/Engineering_Physics_by_S_D_Jain_and_G_G_Sahasrabudhe/5-Polarisation.ipynb new file mode 100644 index 0000000..aa6c25a --- /dev/null +++ b/Engineering_Physics_by_S_D_Jain_and_G_G_Sahasrabudhe/5-Polarisation.ipynb @@ -0,0 +1,189 @@ +{ +"cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "# Chapter 5: Polarisation" + ] + }, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 5.4: Brewster_Law.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc();\n", +"clear;\n", +"//Given:\n", +"mu = 1.33; //Refractive index of water\n", +"//Brewster's angle, theta_p = atand(mu) ;\n", +"theta_p = atand(mu); // in degrees\n", +"theta_s = 90-theta_p ; // in degrees\n", +"printf('Angle = %.1f degrees',theta_s);" + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 5.5: Critical_angle_for_TIR.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc();\n", +"clear;\n", +"//Given:\n", +"r = 90; // in degrees\n", +"mu_o= 1.658 ;// Refractive index for ordinary array\n", +"mu =1.55; // Refractive index for a canada balsam material\n", +"//Snell's Law,mu1*sin(i) = mu2*sin(r), we have :\n", +"i = asind((mu*sind(90))/mu_o); // angle in degrees\n", +"printf('Critical angle = %d degrees',i);\n", +"" + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 5.6: Minimum_thickness_of_wave_plate.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc();\n", +"clear;\n", +"//Given :\n", +"mu_o = 1.544; //Refractive index for ordinary ray\n", +"mu_e = 1.553;//Refractive index for extraordinary ray\n", +"lambda = 5890;//Wavelength in A\n", +"//(a)Plane polarised light :\n", +"//lambda is converted from A to cm , 1 A = 1.0*10^-8 cm\n", +"t1 = (lambda*10^-8)/(2*(mu_e-mu_o));//Minimum thickness in cm\n", +"//(b)Circularly polarised light :\n", +"t2 = (lambda*10^-8)/(4*(mu_e-mu_o));// Minimum thickness in cm\n", +"printf('Minimum thickness :\n\n');\n", +"printf('(a)Plane polarised light : %.2f x 10^-3 cm \n\n',t1*10^3);\n", +"printf('(b)Circularly polarised light : %.2f x 10^-3 cm ',t2*10^3);\n", +"" + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 5.7: Birefringent_crystal.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc();\n", +"clear;\n", +"//Given :\n", +"lambda = 5890; //Wavelength in A\n", +"//(a)Calcite crystal\n", +"mu1_o = 1.658;//refractive index for ordinary ray\n", +"mu1_e = 1.486;//refractive index for extraordinary ray\n", +"t1 = 0.0052 ; //thickness in mm\n", +"// 1 A = 1.0*10^-7 mm\n", +"alpha1 = ((2*%pi*(mu1_o-mu1_e)*t1)/(lambda*10^-7)); // phase difference in radians\n", +"//(b) Quartz crystal\n", +"mu2_o = 1.544; //refractive index for ordinary ray\n", +"mu2_e = 1.553; //refractive index for extraordinary ray\n", +"t2 = 0.0234;//thickness in mm\n", +"alpha2 = ((2*%pi*(mu2_e-mu2_o)*t2)/(lambda*10^-7)); // phase difference in radians\n", +"printf('(a)Calcite crystal : \n Phase difference is %.3f radians \n',alpha1);\n", +"printf('(a)Quartz crystal : \n Phase difference is %.3f radians',alpha2);\n", +"\n", +"" + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 5.9: Application_of_Optical_Activity.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc();\n", +"clear;\n", +"//Given :\n", +"rho = 6.6; // Specific rotation of sugar in degrees g^-1 cm^2\n", +"l = 20; //length in cm\n", +"deltad = 1*10^-3;//difference in sugar concentration in g/cm^3\n", +"lc = 0.1; // least count in degrees\n", +"//Rotation due to optical activity = rho*l*d\n", +"deltatheta = rho*l*deltad; // in degrees\n", +"printf('Change in theta :%1.3f degrees.\n\n',deltatheta);\n", +"\n", +"if(deltatheta > lc)\n", +" printf('The concentration of 1 mg/cm^3 will be detected by the given urinalysis tube.');\n", +" else\n", +" printf('The concentration of 1 mg/cm^3 will not be detected.');\n", +"end " + ] + } +], +"metadata": { + "kernelspec": { + "display_name": "Scilab", + "language": "scilab", + "name": "scilab" + }, + "language_info": { + "file_extension": ".sce", + "help_links": [ + { + "text": "MetaKernel Magics", + "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md" + } + ], + "mimetype": "text/x-octave", + "name": "scilab", + "version": "0.7.1" + } + }, + "nbformat": 4, + "nbformat_minor": 0 +} |