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diff --git a/A_Comprehensive_Textbook_Of_Applied_Physics_/Chapter2.ipynb b/A_Comprehensive_Textbook_Of_Applied_Physics_/Chapter2.ipynb
index 7c9499cb..b50ddf47 100644
--- a/A_Comprehensive_Textbook_Of_Applied_Physics_/Chapter2.ipynb
+++ b/A_Comprehensive_Textbook_Of_Applied_Physics_/Chapter2.ipynb
@@ -1,342 +1,339 @@
-{
- "metadata": {
- "name": ""
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "UNIT-2:Application of Sound Waves"
- ]
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example no:2.1,Page no:41"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Calculate reverberation time\n",
- "\n",
- "#Variable declaration\n",
- "v=3000 #volume in metre cube.\n",
- "theta=0.2 #theta in owu(open window unit).\n",
- "s=1850 #area in metre cube.\n",
- "\n",
- "#Calculation\n",
- "a=theta*s #calculating total absorbtion of surface.\n",
- "T=(0.165*v)/a #calculating T using Sabine formula\n",
- "\n",
- "#Result\n",
- "print\"Reverberation time of Room = \",round(T,2) ,\"sec\" \n"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Reverberation time of Room = 1.34 sec\n"
- ]
- }
- ],
- "prompt_number": 11
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example no:2.2,Page no:41"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Calculate average absorbing power\n",
- "\n",
- "#Variable declaration\n",
- "v=120000 #volume in metre cube.\n",
- "t=1.5 #time in second.\n",
- "s=25000 #area in metre cube.\n",
- "\n",
- "#Calculation\n",
- "a=(0.16*v)/(t*s) #using Sabine formula for calculating a\n",
- "\n",
- "#Variable declaration\n",
- "print\"Average Absorbing Power of Surface = \",a,\"o w u\" "
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Average Absorbing Power of Surface = 0.512 o w u\n"
- ]
- }
- ],
- "prompt_number": 39
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example no:2.3,Page no:42"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Reverberation time of cinema hall\n",
- "\n",
- "#Variable declaration\n",
- "v=6000.0 #Volume in metre cube.\n",
- "a=20.0 #surface absorbtion in owu(open window unit).\n",
- "\n",
- "#Calculation\n",
- "T=(0.165*v)/(a) #calculating T using Sabine Formula.\n",
- "\n",
- "#Result\n",
- "print\"Reverberation Time = \",T,\"sec\"\n",
- "print\"\\nNOTE:Calculation mistake in book\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Reverberation Time = 49.5 sec\n",
- "\n",
- "NOTE:Calculation mistake in book\n"
- ]
- }
- ],
- "prompt_number": 37
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example no:2.4,Page no:42"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Reverberation time with persons\n",
- "\n",
- "#Variable declaration\n",
- "v=3500 #volume in metre cube.\n",
- "n1=370-300 #no. of audience on wooden seats.\n",
- "n2=300-70 #no. of empty wooden seats.\n",
- "\n",
- "#Calculation\n",
- "a1s1=0.04*60 #absorption due to wooden doors.\n",
- "a2s2=0.03*700 #absorption due to plastered walls.\n",
- "a3s3=0.06*50 #absorption due to glass work.\n",
- "a4s4=4.2*370 #absorption due to audience on spungy and wooden \n",
- "#seats.\n",
- "a5s5=2*230 #absorption due to empty seats.\n",
- "sum=a1s1+a2s2+a3s3+a4s4+a5s5 #total absorption of cinema hall.\n",
- "T=(0.165*v)/sum #calculating T using Sabine Formula.\n",
- "\n",
- "#Result\n",
- "print\"Reverberation Time = \",round(T,2),\"sec\" "
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Reverberation Time = 0.28 sec\n"
- ]
- }
- ],
- "prompt_number": 40
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example no:2.5,Page no:49"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Frequency of ultrasonics\n",
- "\n",
- "import math\n",
- "\n",
- "#Variable declaration\n",
- "l=10 #length in centimetres.\n",
- "Y=20*10**11 #Young's Modulus in dyne/cm square.\n",
- "R=8 #Density in gram/cc\n",
- "\n",
- "#Calculation\n",
- "n=(1.0/(2*l))*math.sqrt(Y/R) #calculating frequency of vibration using \n",
- "#young's modulus.\n",
- "\n",
- "#Result\n",
- "print\"Frequency of vibration=\",n,\"Hz\" "
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Frequency of vibration= 25000.0 Hz\n"
- ]
- }
- ],
- "prompt_number": 28
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example no:2.6,Page no:50"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Fundamental frequency of vibration\n",
- "\n",
- "import math\n",
- "\n",
- "#Variable declaration\n",
- "t=0.1 #thickness in centimetre.\n",
- "Y=8.75*10**11 #Young's Modulus in dyne/cm square.\n",
- "R=2.654 #Density in gram/cm square.\n",
- "\n",
- "#Calculation\n",
- "n=(1/(2*t))*math.sqrt(Y/R) #calculating frequency using Young's modulus.\n",
- "\n",
- "#Result\n",
- "print\"Frequency of Vibration=\",round(n),\"Hz\" "
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Frequency of Vibration= 2870936.0 Hz\n"
- ]
- }
- ],
- "prompt_number": 26
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example no:2.7,Page no:50"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Speed of sound wave in water\n",
- "\n",
- "#Variable declaration\n",
- "K=2.026*10**9 #Bulk Modulus in N/m square.\n",
- "R=10**3 #Density in Kg/m cube.\n",
- "\n",
- "#Calculation\n",
- "V=math.sqrt(K/R) #Calculating speed using Bulk Modulus.\n",
- "\n",
- "#Result\n",
- "print\"Velocity of sound waves in water = \",round(V,2),\"m/sec\" \n"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Velocity of sound waves in water = 1423.38 m/sec\n"
- ]
- }
- ],
- "prompt_number": 18
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example no:2.8,Page no:51"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Speed of ultrasonic wave in air\n",
- "\n",
- "import math\n",
- "\n",
- "#Variable declaration\n",
- "Y=1.41 #Young's Modulus.\n",
- "R=1.293*10**-3 #Density of air in g/centimetre cube.\n",
- "P=76*13.6*980 #atmospheric pressure in dyne/cm square.\n",
- "\n",
- "#Calculation\n",
- "V=math.sqrt((Y*P)/R) #calculating speed using young's modulus.\n",
- "\n",
- "#Result\n",
- "print\"Speed of ultrasonic wave in air at n.t.p=\",round(V*10**-2,1),\"m/sec\" "
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Speed of ultrasonic wave in air at n.t.p= 332.4 m/sec\n"
- ]
- }
- ],
- "prompt_number": 16
- }
- ],
- "metadata": {}
- }
- ]
+{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:bc446a4cb1141cc1fc3a73e237c82b9c455db1185763ba734b760bbf57d3288c"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "UNIT-2:Application of Sound Waves"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example no:2.1,Page no:41"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "\n",
+ "#Variable declaration\n",
+ "v=3000 #volume in metre cube.\n",
+ "theta=0.2 #theta in owu(open window unit).\n",
+ "s=1850 #area in metre cube.\n",
+ "\n",
+ "#Calculation\n",
+ "a=theta*s #calculating total absorbtion of surface.\n",
+ "T=(0.165*v)/a #calculating T using Sabine formula\n",
+ "\n",
+ "#Result\n",
+ "print\"Reverberation time of Room = \",round(T,2) ,\"sec\" \n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Reverberation time of Room = 1.34 sec\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example no:2.2,Page no:41"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "#Variable declaration\n",
+ "v=120000 #volume in metre cube.\n",
+ "t=1.5 #time in second.\n",
+ "s=25000 #area in metre cube.\n",
+ "\n",
+ "#Calculation\n",
+ "a=(0.16*v)/(t*s) #using Sabine formula for calculating a\n",
+ "\n",
+ "#Variable declaration\n",
+ "print\"Average Absorbing Power of Surface = \",a,\"o w u\" "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Average Absorbing Power of Surface = 0.512 o w u\n"
+ ]
+ }
+ ],
+ "prompt_number": 39
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example no:2.3,Page no:42"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "\n",
+ "#Variable declaration\n",
+ "v=6000.0 #Volume in metre cube.\n",
+ "a=20.0 #surface absorbtion in owu(open window unit).\n",
+ "\n",
+ "#Calculation\n",
+ "T=(0.165*v)/(a) #calculating T using Sabine Formula.\n",
+ "\n",
+ "#Result\n",
+ "print\"Reverberation Time = \",T,\"sec\"\n",
+ "print\"\\nNOTE:Calculation mistake in book\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Reverberation Time = 49.5 sec\n",
+ "\n",
+ "NOTE:Calculation mistake in book\n"
+ ]
+ }
+ ],
+ "prompt_number": 37
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example no:2.4,Page no:42"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "v=3500 #volume in metre cube.\n",
+ "n1=370-300 #no. of audience on wooden seats.\n",
+ "n2=300-70 #no. of empty wooden seats.\n",
+ "\n",
+ "#Calculation\n",
+ "a1s1=0.04*60 #absorption due to wooden doors.\n",
+ "a2s2=0.03*700 #absorption due to plastered walls.\n",
+ "a3s3=0.06*50 #absorption due to glass work.\n",
+ "a4s4=4.2*370 #absorption due to audience on spungy and wooden \n",
+ "#seats.\n",
+ "a5s5=2*230 #absorption due to empty seats.\n",
+ "sum=a1s1+a2s2+a3s3+a4s4+a5s5 #total absorption of cinema hall.\n",
+ "T=(0.165*v)/sum #calculating T using Sabine Formula.\n",
+ "\n",
+ "#Result\n",
+ "print\"Reverberation Time = \",round(T,2),\"sec\" "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Reverberation Time = 0.28 sec\n"
+ ]
+ }
+ ],
+ "prompt_number": 40
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example no:2.5,Page no:49"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "\n",
+ "import math\n",
+ "\n",
+ "#Variable declaration\n",
+ "l=10 #length in centimetres.\n",
+ "Y=20*10**11 #Young's Modulus in dyne/cm square.\n",
+ "R=8 #Density in gram/cc\n",
+ "\n",
+ "#Calculation\n",
+ "n=(1.0/(2*l))*math.sqrt(Y/R) #calculating frequency of vibration using \n",
+ "#young's modulus.\n",
+ "\n",
+ "#Result\n",
+ "print\"Frequency of vibration=\",n,\"Hz\" "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Frequency of vibration= 25000.0 Hz\n"
+ ]
+ }
+ ],
+ "prompt_number": 28
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example no:2.6,Page no:50"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "import math\n",
+ "\n",
+ "#Variable declaration\n",
+ "t=0.1 #thickness in centimetre.\n",
+ "Y=8.75*10**11 #Young's Modulus in dyne/cm square.\n",
+ "R=2.654 #Density in gram/cm square.\n",
+ "\n",
+ "#Calculation\n",
+ "n=(1/(2*t))*math.sqrt(Y/R) #calculating frequency using Young's modulus.\n",
+ "\n",
+ "#Result\n",
+ "print\"Frequency of Vibration=\",round(n),\"Hz\" "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Frequency of Vibration= 2870936.0 Hz\n"
+ ]
+ }
+ ],
+ "prompt_number": 26
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example no:2.7,Page no:50"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "\n",
+ "#Variable declaration\n",
+ "K=2.026*10**9 #Bulk Modulus in N/m square.\n",
+ "R=10**3 #Density in Kg/m cube.\n",
+ "\n",
+ "#Calculation\n",
+ "V=math.sqrt(K/R) #Calculating speed using Bulk Modulus.\n",
+ "\n",
+ "#Result\n",
+ "print\"Velocity of sound waves in water = \",round(V,2),\"m/sec\" \n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Velocity of sound waves in water = 1423.38 m/sec\n"
+ ]
+ }
+ ],
+ "prompt_number": 18
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example no:2.8,Page no:51"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "\n",
+ "import math\n",
+ "\n",
+ "#Variable declaration\n",
+ "Y=1.41 #Young's Modulus.\n",
+ "R=1.293*10**-3 #Density of air in g/centimetre cube.\n",
+ "P=76*13.6*980 #atmospheric pressure in dyne/cm square.\n",
+ "\n",
+ "#Calculation\n",
+ "V=math.sqrt((Y*P)/R) #calculating speed using young's modulus.\n",
+ "\n",
+ "#Result\n",
+ "print\"Speed of ultrasonic wave in air at n.t.p=\",round(V*10**-2,1),\"m/sec\" "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Speed of ultrasonic wave in air at n.t.p= 332.4 m/sec\n"
+ ]
+ }
+ ],
+ "prompt_number": 16
+ }
+ ],
+ "metadata": {}
+ }
+ ]
} \ No newline at end of file
generated by cgit (git 2.34.1) at 2024-12-20 14:51:49 +0000