From d36fc3b8f88cc3108ffff6151e376b619b9abb01 Mon Sep 17 00:00:00 2001 From: kinitrupti Date: Fri, 12 May 2017 18:40:35 +0530 Subject: Revised list of TBCs --- Modern_Physics/Chapter16_1.ipynb | 83 ---------------------------------------- 1 file changed, 83 deletions(-) delete mode 100755 Modern_Physics/Chapter16_1.ipynb (limited to 'Modern_Physics/Chapter16_1.ipynb') diff --git a/Modern_Physics/Chapter16_1.ipynb b/Modern_Physics/Chapter16_1.ipynb deleted file mode 100755 index 3d17f95b..00000000 --- a/Modern_Physics/Chapter16_1.ipynb +++ /dev/null @@ -1,83 +0,0 @@ -{ - "metadata": { - "name": "MP-16" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": "Cosmology: Origin and Fate of Universe" - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": "Example 16.1 Page 529" - }, - { - "cell_type": "code", - "collapsed": false, - "input": "#initiation of variable\nfrom math import log\nN2=0.25;N1=0.75; #various given values\nL2=1.0;L1=0.0;\nE1_E2=-4.7*(10**-4); #Energy difference\n\n#calculation\na=(N2/N1); b=(((2*L2)+1)/((2*L1)+1));c=E1_E2; #various terms involved in the formula of ratio of population\nkT=(c/log(a/b)); #value of k*T\nk=0.0000856; #constant\nT=kT/k; #temperature of interstellar space\n\n#result\nprint \"The temperature of interstellar space was found out to be in K\",round(T,3);", - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": "The temperature of interstellar space was found out to be in K 2.499\n" - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": "Example 16.2 Page 536" - }, - { - "cell_type": "code", - "collapsed": false, - "input": "#initiation of variable\nmc2=940.0*10**6; k=8.6*10**-5; #various constants and given values in suitable units\n\n#calculation\nT= mc2/k; #temperature of the photons\n\n#result\nprint \"The temperature of the photons must be in K %.1e\" %round(T,3);\n\n#part2\nt=((1.5*10**10)/T)**2; #age of universe when the photons have the above temperature\n\n#result\nprint\"The age of the universe for the temperature of the photon to be as obtained above in seconds is %.01e\" %t;", - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": "The temperature of the photons must be in K 1.1e+13\nThe age of the universe for the temperature of the photon to be as obtained above in seconds is 1.883318e-06\n" - } - ], - "prompt_number": 1 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": "Example 16.3 Page 539" - }, - { - "cell_type": "code", - "collapsed": false, - "input": "#initation of variable\nfrom math import exp\nk=8.62*10**-5; #various values and constants\nT= 1.5*10**10;\ndelE=1.3*10**6;\n\n#calculation\na= delE/(k*T); #exponent in boltzmann factor\nb=exp(-a); #ratio of neutron to protons\nr=(1/(1+b))*100; #relative number of protons\n\n#result\nprint\"The percentage of protons is\",round(r),\" neutrons is \",round(100-r);", - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": "The percentage of protons is 73.0 neutrons is 27.0\n" - } - ], - "prompt_number": 6 - } - ], - "metadata": {} - } - ] -} \ No newline at end of file -- cgit