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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 23:Optical Devices"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Ex23.1:pg-1094"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The focal length of the reading glasses is f= 37.5 cm\n"
]
}
],
"source": [
" #Example 23_1\n",
" \n",
" \n",
"#To find the focal length of the reading glasses\n",
"d1=25.0 #units in cm\n",
"d2=-75 #units in cm\n",
"f=(d1*d2)/(d2+d1) #Units in cm\n",
"print \"The focal length of the reading glasses is f=\",round(f,2),\" cm\"\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Ex23.2:pg-1094"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The focal length of the corrective lens is f= 50.0 cm\n"
]
}
],
"source": [
" #Example 23_2\n",
" \n",
" \n",
" #To find the focal length of the corrective lens\n",
"d1=-50.0 #units in cm\n",
"f=-(d1) #Units in cm\n",
"print \"The focal length of the corrective lens is f=\",round(f),\" cm\"\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Ex23.3:pg-1095"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The combined focal length is= 0.3 cm\n"
]
}
],
"source": [
" #Example 23_3\n",
" \n",
" \n",
"#To find the focal length of the combination\n",
"d1=20.0 #units in cm\n",
"d2=-30.0 #units in cm\n",
"d3=60.0 #units in cm\n",
"p1=100/d1 #units in dipoters\n",
"p2=100/d2 #units in dipoters\n",
"p3=100/d3 #units in dipoters\n",
"p=1/(p1+p2+p3) #Units in diopters\n",
"print \"The combined focal length is=\",round(p,1),\" cm\"\n"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 2
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython2",
"version": "2.7.11"
}
},
"nbformat": 4,
"nbformat_minor": 0
}
|
