initial commit / add all books

10 files changed, 69 insertions, 0 deletions

diff --git a/446/CH10/EX10.1/10_1.sce b/446/CH10/EX10.1/10_1.sce
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index 000000000..8a529803b
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+++ b/446/CH10/EX10.1/10_1.sce
@@ -0,0 +1,9 @@
+clear

+clc

+disp('Exa-10.1'); //Theoretical Question

+//**Install and use maxim tool for symbolic integration. remove the '//'(comment markings) below and run the program.

+//Vm=integrate('(v^3)*(e^(-b*v^2))','x',0,%infi);

+//rest of the results follow from above

+printf('The average speed is found out to be (8*k*T/m)^1/2)\n');   

+printf('The RMS speed is (3*k*T/m)^1/2\n');

+printf('The Most probable speed is found out to be (2*k*T/m)^1/2 \n where all the symbols used are conventional constants.');
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diff --git a/446/CH10/EX10.1/10_1.txt b/446/CH10/EX10.1/10_1.txt
new file mode 100755
index 000000000..c7282c8ab
--- /dev/null
+++ b/446/CH10/EX10.1/10_1.txt
@@ -0,0 +1,6 @@
+  

+ Exa-10.1   

+The average speed is found out to be (8*k*T/m)^1/2)

+The RMS speed is (3*k*T/m)^1/2

+The Most probable speed is found out to be (2*k*T/m)^1/2 

+ where all the symbols used are conventional constants. 
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diff --git a/446/CH10/EX10.2/10_2.sce b/446/CH10/EX10.2/10_2.sce
new file mode 100755
index 000000000..ec45c4f77
--- /dev/null
+++ b/446/CH10/EX10.2/10_2.sce
@@ -0,0 +1,7 @@
+clear

+clc

+disp('Exa-10.2');       //The solution is purely theoretical and involves a lot of approximations.

+printf('The value of shift in frequency was found out to be delf=7.14*fo*10^-7*sqrt(T) for a star composing of hydrogen atoms at a temperature T.\n');

+T=6000;                       //temperature for sun

+delf=7.14*10^-7*sqrt(T);.....//change in frequency

+printf('The value of frequency shift for sun(at 6000 deg. temperature) comprsing of hydrogen atoms is %.1e times the frequency of the light.',delf);
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diff --git a/446/CH10/EX10.2/10_2.txt b/446/CH10/EX10.2/10_2.txt
new file mode 100755
index 000000000..b2a0199b3
--- /dev/null
+++ b/446/CH10/EX10.2/10_2.txt
@@ -0,0 +1,4 @@
+  

+ Ex-10.2   

+The value of shift in frequency was found out to be delf=7.14*fo*10^-7*sqrt(T) for a star composing of hydrogen atoms at a temperature T.

+The value of frequency shift for sun(at 6000 deg. temperature) comprsing of hydrogen atoms is 5.5e-005 times the frequency of the light. 
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diff --git a/446/CH10/EX10.3/10_3.sce b/446/CH10/EX10.3/10_3.sce
new file mode 100755
index 000000000..99f25d0df
--- /dev/null
+++ b/446/CH10/EX10.3/10_3.sce
@@ -0,0 +1,11 @@
+clear

+clc

+disp('Exa-10.3(a)');

+kT=0.0252;E=10.2                              // at room temperature, kT=0.0252 standard value and given value of E

+n2=2;n1=1; g2=2*(n2^2);g1=2*(n1^2);           //values for ground and excited states

+t=(g2/g1)*%e^(-E/kT);                         //fraction of atoms

+printf('The number of hydrogen atoms required is %e which weighs %e Kg\n',1/t,(1/t)*(1.67*10^-27));

+disp('Ex-10.3(b)');

+t=0.1/0.9;k=8.65*10^-5                          //fracion of atoms in case-2 is given

+T=-E/(log(t/(g2/g1))*k);                        //temperature

+printf('The value of temperature at which 1/10 atoms are in excited state is %.3f K',T);

diff --git a/446/CH10/EX10.3/10_3.txt b/446/CH10/EX10.3/10_3.txt
new file mode 100755
index 000000000..288debed4
--- /dev/null
+++ b/446/CH10/EX10.3/10_3.txt
@@ -0,0 +1,6 @@
+  

+ Exa-10.3(a)   

+The number of hydrogen atoms required is 1.526869e+175 which weighs 2.549871e+148 Kg

+ 

+ Ex-10.3(b)   

+The value of temperature at which 1/10 atoms are in excited state is 32905.944 K 
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diff --git a/446/CH10/EX10.4/10_4.sce b/446/CH10/EX10.4/10_4.sce
new file mode 100755
index 000000000..7a18c6757
--- /dev/null
+++ b/446/CH10/EX10.4/10_4.sce
@@ -0,0 +1,9 @@
+clear

+clc

+disp('Exa-10.4(a)'); //theoretical

+printf('The energy of interaction with magnetic field is given by uB and the degeneracy of the states are +-1/2 which are identical.\nThe ratio is therefore pE2/pE1 which gives e^(-2*u*B/k*T)');

+disp('Ex-10.4(b)');

+uB=5.79*10^-4;        //for a typical atom

+t=1.1;k=8.65*10^-5;   //ratio and constant k

+T=2*uB/(log(t)*k);    //temperature

+printf('The value of temperature ar which the given ratio exists is %.2f K',T);

diff --git a/446/CH10/EX10.4/10_4.txt b/446/CH10/EX10.4/10_4.txt
new file mode 100755
index 000000000..874081af3
--- /dev/null
+++ b/446/CH10/EX10.4/10_4.txt
@@ -0,0 +1,6 @@
+  

+ Exa-10.4(a)   

+The energy of interaction with magnetic field is given by uB and the degeneracy of the states are +-1/2 which are identical.

+The ratio is therefore pE2/pE1 which gives e^(-2*u*B/k*T) 

+ Ex-10.4(b)   

+The value of temperature ar which the given ratio exists is 140.46 K 
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diff --git a/446/CH10/EX10.5/10_5.sce b/446/CH10/EX10.5/10_5.sce
new file mode 100755
index 000000000..ef6131ac4
--- /dev/null
+++ b/446/CH10/EX10.5/10_5.sce
@@ -0,0 +1,8 @@
+clear

+clc

+disp('Exa-10.5');

+p=0.971; A=6.023*10^23; m=23.0;    // various given values and constants

+c= (p*A/m)*10^6;                   // atoms per unit volume

+hc=1240; mc2=0.511*10^6;           // hc=1240 eV.nm

+E= ((hc^2)/(2*mc2))*(((3/(8*%pi))*c)^(2/3)); //value of fermi energy

+printf('The fermi energy for sodium is %f eV',E*10^-18);//multiply by 10^-18 to convert metres^2 term to nm^2

diff --git a/446/CH10/EX10.5/10_5.txt b/446/CH10/EX10.5/10_5.txt
new file mode 100755
index 000000000..f82bd11c6
--- /dev/null
+++ b/446/CH10/EX10.5/10_5.txt
@@ -0,0 +1,3 @@
+  

+ Exa-10.5   

+The fermi energy for sodium is 3.15 eV 
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