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{
"metadata": {
"name": "",
"signature": "sha256:3f76c4dafe83129bfa41f6667339b27d23cec6e550015e787119c4ce10873761"
},
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 10 Difraction"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10.1 Page no 154"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#given\n",
"D=1 #Distance of screen from the slit in m\n",
"w=6000 #Wavelength in Angstrom\n",
"w1=0.6 #Slit width in mm\n",
"\n",
"#Calculations\n",
"x=((2*D*w*10**-10)/(w1*10**-3))*1000\n",
"\n",
"#Output\n",
"print\"Width of central band is \",x,\"mm\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Width of central band is 2.0 mm\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10.2 Page no 155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#given\n",
"d1=6000.0 #Diffraction grating have number of lines per cm\n",
"q=50 #Diffracted second order spectral line observed in degrees\n",
"n=2 #Second order\n",
"\n",
"#Calculations\n",
"import math\n",
"w=(math.sin(q*3.14/180.0)/(d1*n))*10**8\n",
"\n",
"#Output\n",
"print\"Wavelength of radiation is \",round(w,1),\"Angstrom\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Wavelength of radiation is 6381.3 Angstrom\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10.3 Page no 155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#given\n",
"d1=6000 #Diffraction grating have number of lines per cm\n",
"w=6000 #Wavelength in Angstrom\n",
"\n",
"#Calculations\n",
"n=(1/(d1*w*10**-8))\n",
"\n",
"#Output\n",
"print\"Maximum order of diffraction that can be observed is \",round(n,2)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Maximum order of diffraction that can be observed is 2.78\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10.4 Page no 155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#given\n",
"B=(3*3.14)/2 #First secondary maxima at B\n",
"\n",
"#Calculations\n",
"import math\n",
"I=(math.sin(B)/B)**2\n",
"\n",
"#Output\n",
"print\"Ratio of intensity of central maxima to first secondary maxima is \",round(I,3)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Ratio of intensity of central maxima to first secondary maxima is 0.045\n"
]
}
],
"prompt_number": 7
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10.5 Page no 155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#given\n",
"w=6400 #Wave length of light in Angstrom\n",
"w1=0.3 #Slit width in mm\n",
"d=110 #Distance of screen from the slit in cm\n",
"n=3 #order\n",
"\n",
"#Calculations\n",
"x=((n*w*10**-10*(d/100.0))/(w1*10**-3))*1000\n",
"\n",
"#Output\n",
"print\"Distance between the centre of the central maximum and the third dark fringe is \",x,\"mm\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Distance between the centre of the central maximum and the third dark fringe is 7.04 mm\n"
]
}
],
"prompt_number": 8
}
],
"metadata": {}
}
]
}
|
