{ "metadata": { "name": "", "signature": "sha256:15ba15ce3635a11f8889cf96adb08a8de4e1e5c63e5f5177ed54dd77e97a3365" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "heading", "level": 1, "metadata": {}, "source": [ "Chapter 16 Electrons, Ions, Isotopes and nucleus" ] }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 16.1 Page no 268" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#given\n", "E=(200*100) #Electric field in V/m\n", "B=0.2 #Magnetic field in T\n", "B1=0.3 #Magnetic field in the main chamber in T\n", "q=(1.6*10**-19) #Charge of the electron in coloumbs\n", "m=(12,13) #Carbon isotopes C12 and C13\n", "M=(1.67*10**-27) #AMU(Atomic Mass Unit) in kg\n", "\n", "#Calculations\n", "v=(E/B)\n", "s=(2*v*(m[1]-m[0])*M*100)/(q*B1)\n", "\n", "#Output\n", "print\"Seperation on photographic plate is \",round(s,4),\"cm\"\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Seperation on photographic plate is 0.6958 cm\n" ] } ], "prompt_number": 3 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 16.2 Page no 268" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#given\n", "a=20 #Atomic number of Ca\n", "m=40.0 #mass number of Ca\n", "M=39.962591 #Mass of Ca nucleus in u\n", "mp=1.007276 #Mass of proton in AMU\n", "mn=1.008665 #Mass of neutron in AMU\n", "\n", "#Calculations\n", "BE=(1/m)*((a*mp)+(a*mn)-M)*1000\n", "\n", "#Output\n", "print\"BE per nucleon is \",round(BE,1),\"MeV\"\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "BE per nucleon is 8.9 MeV\n" ] } ], "prompt_number": 9 } ], "metadata": {} } ] }