1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
{
"metadata": {
"name": "",
"signature": "sha256:dc1d02c818142fc43f1bb36bcc3b4789ed6aba6b82727804f7035772e1b68c40"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter7-Interface and Diffraction"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex1-pg146"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"##Example 7.1\n",
"##plane parallel thin film\n",
"\n",
"##given values\n",
"x=5890*10**-10;##wavelength of light in metre\n",
"n=1.5;##refractive index\n",
"r=60*math.pi/180.;##angle of refraction in degree\n",
" ##calculation\n",
"t=x/(2*n*math.cos(r));\n",
"print'%s %.2f %s'%('thickness of plate (in micrometre) is:',t*10**6,'');"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"thickness of plate (in micrometre) is: 0.39 \n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex2-pg151"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"##Example 7.2\n",
"##wedge shaped thin film\n",
"\n",
"##given values\n",
"x=5893*10**-10.;##wavelength of light in metre\n",
"n=1.5;##refractive index\n",
"y=.1*10**-3.;##fringe spacing\n",
" ##calculation\n",
"z=x/(2.*n*y);##angle of wedge\n",
"alpha=z*180./math.pi;##conversion of radian into degree\n",
"print'%s %.2f %s'%('angle of wedge (in degree) is:',alpha,'');"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"angle of wedge (in degree) is: 0.11 \n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex3-pg156"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"##Example 7.3\n",
"##Newton's ring experiment- calculation of refractive index\n",
"\n",
"##given values\n",
"D1=1.5;##diametre (in cm)of tenth dark ring in air\n",
"D2=1.27;##diametre (in cm)of tenth dark ring in liquid\n",
"\n",
"\n",
" ##calculation\n",
"n=D1**2./D2**2.;\n",
"print'%s %.2f %s'%('refractive index of liquid is',n,'');"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"refractive index of liquid is 1.40 \n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex4-160"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"##Example 7.4\n",
"##nonreflecting film\n",
"\n",
"##given values\n",
"l=5500*10**-10.;##wavelength of light\n",
"n1=1.33;##refractive index of water\n",
"n2=1.52;##refractive index of glass window pane\n",
"x=math.sqrt(n1);##to check if it is nonreflecting\n",
"\n",
" ##calculation\n",
"t=l/(4.*n1);##thickness of water film required\n",
"print'%s %.2f %s'%('minimum thickness of film (in metre) is',t*10**6,'');"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"minimum thickness of film (in metre) is 0.10 \n"
]
}
],
"prompt_number": 1
}
],
"metadata": {}
}
]
}
|
