10 files changed, 111 insertions, 0 deletions
diff --git a/3020/CH14/EX14.1/ex14_1.sce b/3020/CH14/EX14.1/ex14_1.sce
new file mode 100755
index 000000000..9733fa0f2
--- /dev/null
+++ b/3020/CH14/EX14.1/ex14_1.sce
@@ -0,0 +1,15 @@
+clc;
+clear all; 
+m = 9.1e-31; // Mass of an electron in Kg
+e = 1.6e-19; // Charge of an electron in Columbs
+h = 6.626e-34; // Planck's Constant
+V1 = 150; // Potential difference in Volts (case1)
+lambda1 = h/(sqrt(2*m*e*V1));
+disp('m',lambda1,'The de-broglie wavelength when V=150 volts is ') 
+V2 = 5000; // Potential difference in Volts (case2)
+lambda2 = h/(sqrt(2*m*e*V2));
+disp('m',lambda2,'The de-broglie wavelength when V=5000 volts is ')
+V3 = 400; // Potential difference in Volts (case3)
+lambda3 = h/(sqrt(2*m*e*V3));
+disp('m',lambda3,'The de-broglie wavelength when V=400 volts is ')
+//slight variation in answer than in textbook
diff --git a/3020/CH14/EX14.10/ex14_10.sce b/3020/CH14/EX14.10/ex14_10.sce
new file mode 100755
index 000000000..b99ef4bb6
--- /dev/null
+++ b/3020/CH14/EX14.10/ex14_10.sce
@@ -0,0 +1,10 @@
+clc;
+clear all;
+h = 6.626e-34; // Planck's constant
+m = 9.11e-31; // Mass of an electron in Kg
+e = 1.6e-19; // Charge of an electron
+L = 4e-9 ; // Length of one dimensional potential well in meters
+n = 1; // For ground state
+E = (n^2*h^2)/(8*m*L^2*e);
+disp('eV',E,'The energy of the electron in ground state is')
+// Wrong answer given in textbook.. checked in calculator
diff --git a/3020/CH14/EX14.11/ex14_11.sce b/3020/CH14/EX14.11/ex14_11.sce
new file mode 100755
index 000000000..7061d7189
--- /dev/null
+++ b/3020/CH14/EX14.11/ex14_11.sce
@@ -0,0 +1,9 @@
+clc;
+clear all;
+deltax = 1e-9; // Electron in position in meters
+m = 9.1e-31; // Mass of th electron in Kg
+h = 6.6e-34; // Planck's Constant
+deltap = h/deltax;
+deltav = deltap/m;
+disp('m/s',deltav,'The minimum uncertainity in velocity is')
+// Slight variation in answer as compared to textbook
diff --git a/3020/CH14/EX14.2/ex14_2.sce b/3020/CH14/EX14.2/ex14_2.sce
new file mode 100755
index 000000000..2567ba8b9
--- /dev/null
+++ b/3020/CH14/EX14.2/ex14_2.sce
@@ -0,0 +1,9 @@
+clc;
+clear all;
+m = 9.11e-31; // Mass of an atom in Kg 
+h = 6.626e-34; // Planck's constant 
+e = 1.609e-19; // Charge of an electron in columb
+E = 100*e; // Energy of an electron in Joule
+lambda = h/(sqrt(2*m*E));//The de-broglie wavelength  
+disp('m',lambda,'The de-broglie wavelength is')
+// Slight vartiation in answer than textbook
diff --git a/3020/CH14/EX14.3/ex14_3.sce b/3020/CH14/EX14.3/ex14_3.sce
new file mode 100755
index 000000000..9c0d0726b
--- /dev/null
+++ b/3020/CH14/EX14.3/ex14_3.sce
@@ -0,0 +1,9 @@
+clc;
+clear all;
+m = 1.675e-27; // Mass of an nueton in Kg 
+h = 6.626e-34; // Planck's constant 
+e = 1.609e-19; // Charge of an electron in culoumb
+E = 10e3*e; // Energy of an electron in Joule
+lambda = h/(sqrt(2*m*E));//The de-broglie wavelength  
+disp('m',lambda,'The de-broglie wavelength is')
+// Slight variation in answer than textbook
diff --git a/3020/CH14/EX14.4/ex14_4.sce b/3020/CH14/EX14.4/ex14_4.sce
new file mode 100755
index 000000000..f0b3de3de
--- /dev/null
+++ b/3020/CH14/EX14.4/ex14_4.sce
@@ -0,0 +1,17 @@
+clc;
+clear all;
+c = 3e8; // Velocity of light in air
+m = 9.1e-31; // Mass of an atom in Kg 
+h = 6.626e-34; // Planck's constant 
+e = 1.6e-19; // Charge of an electron in culoumb
+V = 125; // Potential Difference in volts
+v = sqrt((2*e*V)/m); // Velocity of an electron
+disp('m/s',v,'The velocity of an electron is')
+u = (c^2)/v; //Phase velocity of an elctron
+disp('m/s',u,'The Phase velocity of an elctron is')
+lambda = h/(m*v);//The de-broglie wavelength  
+disp('m',lambda,'The de-broglie wavelength is')
+p = m*v; // Momentum of the electron
+disp('(Kg.m)/s',p,'The momentum of th electron is ')
+w = 1/lambda; // Wave number
+disp('m^-1',w,'Thw wave number of he electron wave is')
diff --git a/3020/CH14/EX14.5/ex14_5.sce b/3020/CH14/EX14.5/ex14_5.sce
new file mode 100755
index 000000000..bce38fcaf
--- /dev/null
+++ b/3020/CH14/EX14.5/ex14_5.sce
@@ -0,0 +1,13 @@
+clc;
+clear all;
+k = 1.38e-23; //Boltzmann constant
+h = 6.62e-34; // Planck's constant
+m = 9.1e-31; // Mass of an electron in Kg
+L = 0.1e-9 ; // Length of potential wall in meters
+nx = 1; // For the lowest energy level
+ny = 1; //
+nz = 2; // The higher energy level
+E = (h^2*(nx^2+ny^2+nz^2))/(8*m*L^2);//Energy of electron in (1 1 2) state
+disp('J',E,'Energy of electron in (1 1 2) state is')
+T = (E*2)/(3*k); // Temperature of the system 
+disp('K',T,'Temperature of the system is')
diff --git a/3020/CH14/EX14.6/ex14_6.sce b/3020/CH14/EX14.6/ex14_6.sce
new file mode 100755
index 000000000..1a3f9b2c8
--- /dev/null
+++ b/3020/CH14/EX14.6/ex14_6.sce
@@ -0,0 +1,13 @@
+clc;
+clear all;
+h = 6.626e-34; // Planck's constant
+m = 9.11e-31; // Mass of an electron in Kg
+e = 1.609e-19; // Charge of an electron
+L = 0.1e-9 ; // Length of one dimensional box in meters
+n1 = 1; // For ground state
+E1 = (n1^2*h^2)/(8*m*e*L^2);
+n2 = 6 ; // For fifth excited state
+E6 = (n2^2*h^2)/(8*m*e*L^2);
+E = (E6-E1);
+disp('eV',E,'The energy reqiured to excite the electron from ground state to ffth state is')
+// Wrong answer in textbook... Checked in calculator
diff --git a/3020/CH14/EX14.7/ex14_7.sce b/3020/CH14/EX14.7/ex14_7.sce
new file mode 100755
index 000000000..428cca7c6
--- /dev/null
+++ b/3020/CH14/EX14.7/ex14_7.sce
@@ -0,0 +1,10 @@
+clc;
+clear all;
+h = 6.626e-34; // Planck's constant
+m = 9.11e-31; // Mass of an electron in Kg
+e = 1.609e-19; // Charge of an electron
+L = 0.1e-9 ; // Length of one dimensional box in meters
+n = 1; // For ground state
+E = (n^2*h^2)/(8*m*L^2*e);
+disp('eV',E,'The energy of the electron in ground state is')
+//Slight variation in answer as compared to textbook
diff --git a/3020/CH14/EX14.9/ex14_9.sce b/3020/CH14/EX14.9/ex14_9.sce
new file mode 100755
index 000000000..cac71c25a
--- /dev/null
+++ b/3020/CH14/EX14.9/ex14_9.sce
@@ -0,0 +1,6 @@
+clc;
+clear all;
+deltax = 4e-10; // Electron in the position in meters
+h = 6.626e-34; // Planck's constant
+deltap = h/deltax;
+disp('(Kg.m)/s',deltap,'The uncertainity in momentum is')