initial commit / add all books

14 files changed, 71 insertions, 0 deletions

diff --git a/446/CH7/EX7.1/7_1.sce b/446/CH7/EX7.1/7_1.sce
new file mode 100755
index 000000000..e3a513d89
--- /dev/null
+++ b/446/CH7/EX7.1/7_1.sce
@@ -0,0 +1,4 @@
+clear

+clc

+disp('Exa-7.1'); //The problem is entirely theoretcial.

+printf('The solution obtained is r=4*ao i.e the most likely distance from origin for an electron in n=2,l=1 state.');
\ No newline at end of file
diff --git a/446/CH7/EX7.1/7_1.txt b/446/CH7/EX7.1/7_1.txt
new file mode 100755
index 000000000..6af248da9
--- /dev/null
+++ b/446/CH7/EX7.1/7_1.txt
@@ -0,0 +1,3 @@
+  

+ Exa-7.1   

+The solution obtained is r=4*ao i.e the most likely distance from origin for an electron in n=2,l=1 state. 
\ No newline at end of file
diff --git a/446/CH7/EX7.2/7_2.sce b/446/CH7/EX7.2/7_2.sce
new file mode 100755
index 000000000..2375d12c8
--- /dev/null
+++ b/446/CH7/EX7.2/7_2.sce
@@ -0,0 +1,6 @@
+clear 

+clc

+disp('Exa-7.2');

+// calculating radial probability  P= (4/ao^3)*inegral(r^2 * e^(-2r/ao)) between the limits 0 and ao for r

+Pr=integrate('((x^2)*%e^(-x))/2','x',0,2);// simplifying where as x=2*r/a0; hence the limits change between 0 to 2

+printf('Hence the probability of finding the electron nearer to nucleus is %.3f',Pr);

diff --git a/446/CH7/EX7.2/7_2.txt b/446/CH7/EX7.2/7_2.txt
new file mode 100755
index 000000000..8f879fdee
--- /dev/null
+++ b/446/CH7/EX7.2/7_2.txt
@@ -0,0 +1,3 @@
+  

+ Exa-7.2   

+Hence the probability of finding the electron nearer to nucleus is 0.323
\ No newline at end of file
diff --git a/446/CH7/EX7.3/7_3.sce b/446/CH7/EX7.3/7_3.sce
new file mode 100755
index 000000000..facfef7fe
--- /dev/null
+++ b/446/CH7/EX7.3/7_3.sce
@@ -0,0 +1,8 @@
+clear 

+clc

+disp('Exa-7.3');

+//for l=0; 

+// employing the formula for probability distribution similarly as done in Exa-7.2 

+Pr1= integrate('(1/8)*((4*x^2)-(4*x^3)+(x^4))*%e^(-x)','x',0,1);           //x=r/ao; similrly limits between 0 and 1.

+Pr2=integrate('(1/24)*(x^4)*(%e^-x)','x',0,1);                             //x=r/ao; similrly limits between 0 and 1.

+printf('The probability for l=0 electron is %.3f and for l=1 electron is %.4f.',Pr1,Pr2);

diff --git a/446/CH7/EX7.3/7_3.txt b/446/CH7/EX7.3/7_3.txt
new file mode 100755
index 000000000..07bc874c5
--- /dev/null
+++ b/446/CH7/EX7.3/7_3.txt
@@ -0,0 +1,3 @@
+  

+ Exa-7.3   

+The probability for l=0 electron is 0.034 and for l=1 electron is 0.0037. 
\ No newline at end of file
diff --git a/446/CH7/EX7.4/7_4.sce b/446/CH7/EX7.4/7_4.sce
new file mode 100755
index 000000000..a0ca80f4c
--- /dev/null
+++ b/446/CH7/EX7.4/7_4.sce
@@ -0,0 +1,8 @@
+clear 

+clc

+disp('Exa-7.4');

+l=1;         //given value of l

+am1=sqrt(l*(l+1));      //angular momentum==sqrt(l(l+1)) h

+l=2                     //given l

+am2=sqrt(l*(l+1));

+printf('The angular momenta are found out to be %.3f h and %.3f h respectively for l=1 and l=2.',am1,am2);

diff --git a/446/CH7/EX7.4/7_4.txt b/446/CH7/EX7.4/7_4.txt
new file mode 100755
index 000000000..37dee9be0
--- /dev/null
+++ b/446/CH7/EX7.4/7_4.txt
@@ -0,0 +1,3 @@
+  

+ Exa-7.4   

+The angular momenta are found out to be 1.414 h and 2.449 h respectively for l=1 and l=2. 
\ No newline at end of file
diff --git a/446/CH7/EX7.5/7_5.sce b/446/CH7/EX7.5/7_5.sce
new file mode 100755
index 000000000..84ee3c58b
--- /dev/null
+++ b/446/CH7/EX7.5/7_5.sce
@@ -0,0 +1,5 @@
+clear 

+clc

+disp('Exa-7.5'); //Thoretical question

+disp('The possible values for m are [+2,-2] and hence any of the 5 components [-2h,2h] are possible for the L vector.');

+printf('Length of the vector as found out previously is %.2f*h.',sqrt(6));//angular momentum==sqrt(l(l+1)) h
\ No newline at end of file
diff --git a/446/CH7/EX7.5/7_5.txt b/446/CH7/EX7.5/7_5.txt
new file mode 100755
index 000000000..151a7d1d0
--- /dev/null
+++ b/446/CH7/EX7.5/7_5.txt
@@ -0,0 +1,5 @@
+  

+ Exa-7.5   

+ 

+ The possible values for m are [+2,-2] and hence any of the 5 components [-2h,2h] are possible for the L vector.   

+Length of the vector as found out previously is 2.45*h.
\ No newline at end of file
diff --git a/446/CH7/EX7.6/7_6.sce b/446/CH7/EX7.6/7_6.sce
new file mode 100755
index 000000000..4cd3be88a
--- /dev/null
+++ b/446/CH7/EX7.6/7_6.sce
@@ -0,0 +1,7 @@
+clear 

+clc

+disp('Exa-7.6');

+uz=9.27*10^-24; t=1.4*10^3; x=3.5*10^-2;    //various constants and given values

+m=1.8*10^-25;v=750;                        // mass and velocity of the particle

+d=(uz*t*(x^2))/(m*(v^2));                  //net separtion 

+printf('The distance of separation is %.2f mm',d*10^3);  

diff --git a/446/CH7/EX7.6/7_6.txt b/446/CH7/EX7.6/7_6.txt
new file mode 100755
index 000000000..c79d9ff8f
--- /dev/null
+++ b/446/CH7/EX7.6/7_6.txt
@@ -0,0 +1,3 @@
+  

+ Exa-7.6   

+The distance of separation is 0.16 mm 
\ No newline at end of file
diff --git a/446/CH7/EX7.7/7_7.sce b/446/CH7/EX7.7/7_7.sce
new file mode 100755
index 000000000..80294ea9f
--- /dev/null
+++ b/446/CH7/EX7.7/7_7.sce
@@ -0,0 +1,10 @@
+clear 

+clc

+disp('Exa-7.7');

+n1=1;n2=2;hc=1240;    //hc=1240 eV.nm

+E=(-13.6)*((1/n2^2)-(1/n1^2));   //Energy calcuation

+w=hc/E;                   //wavelength

+u=9.27*10^-24; B=2;          //constants

+delE= u*B/(1.6*10^-19);     //change in energy

+delw=((w^2/hc))*delE;             //change in wavelength

+printf('The change in wavelength is %.5f nm.',delw);
\ No newline at end of file
diff --git a/446/CH7/EX7.7/7_7.txt b/446/CH7/EX7.7/7_7.txt
new file mode 100755
index 000000000..d44ba5bfc
--- /dev/null
+++ b/446/CH7/EX7.7/7_7.txt
@@ -0,0 +1,3 @@
+  

+ Exa-7.7   

+The change in wavelength is 0.00138 nm 
\ No newline at end of file