initial commit / add all books

26 files changed, 353 insertions, 0 deletions

diff --git a/2258/CH1/EX1.1/1_1.sce b/2258/CH1/EX1.1/1_1.sce
new file mode 100755
index 000000000..55062a169
--- /dev/null
+++ b/2258/CH1/EX1.1/1_1.sce
@@ -0,0 +1,10 @@
+clc();

+clear;

+// To calculate the de Broglie wavelength

+c=3*10^8;   //velocity of light in m/s

+v=c/10;   //velocity of proton in m/s

+m=1.67*10^(-27);    //mass of proton in kg

+h=6.626*10^(-34);

+lamda=h/(m*v);   //de Broglie wavelength

+printf("The de Broglie wavelength in metres is");

+disp(lamda);

diff --git a/2258/CH1/EX1.10/1_10.sce b/2258/CH1/EX1.10/1_10.sce
new file mode 100755
index 000000000..ccc115b3c
--- /dev/null
+++ b/2258/CH1/EX1.10/1_10.sce
@@ -0,0 +1,7 @@
+clc();

+clear;

+// To calculate the wavelength of an electron

+V=15;   //potential in kV

+V=V*10^3;    //potential in V

+lamda=12.26/sqrt(V);    //de Broglie wavelength

+printf("The de Broglie wavelength is %f Armstrong",lamda);

diff --git a/2258/CH1/EX1.11/1_11.sce b/2258/CH1/EX1.11/1_11.sce
new file mode 100755
index 000000000..672f1dce4
--- /dev/null
+++ b/2258/CH1/EX1.11/1_11.sce
@@ -0,0 +1,16 @@
+clc();

+clear;

+// To calculate the de Broglie wavelength of neutron

+m=1.675*10^(-27);    //mass of neutron in kg

+h=6.626*10^(-34);

+E=10;   //kinetic energy in keV

+EeV=E*10^3;    //Energy in eV

+Ej=EeV*1.6*10^-19;   //kinetic energy in J

+v=sqrt(2*Ej/m);   //velocity in m/s

+printf("The velocity in m/sec is");

+disp(v);

+lamda=h/(m*v);    //de broglie wavelength in m

+printf("The de Broglie wavelength in metres is");

+disp(lamda);

+lamda_A=lamda*10^10;   //de broglie wavelength in armstrong

+printf("The de Broglie wavelength is %f Armstrong",lamda_A);

diff --git a/2258/CH1/EX1.12/1_12.sce b/2258/CH1/EX1.12/1_12.sce
new file mode 100755
index 000000000..ca7cc3f95
--- /dev/null
+++ b/2258/CH1/EX1.12/1_12.sce
@@ -0,0 +1,14 @@
+clc();

+clear;

+// To calculate the de Broglie wavelength of electron

+m=9.1*10^-31;    //mass of electron in kg

+h=6.6*10^(-34);

+E=2;   //kinetic energy in keV

+EeV=E*10^3;    //Energy in eV

+Ej=EeV*1.6*10^-19;   //kinetic energy in J

+p=sqrt(2*m*Ej);    //momentum

+lamda=h/p;    //de broglie wavelength in m

+printf("The de Broglie wavelength in metres is");

+disp(lamda);

+lamda_A=lamda*10^10;   //de broglie wavelength in armstrong

+printf("The de Broglie wavelength is %f Armstrong",lamda_A);

diff --git a/2258/CH1/EX1.13/1_13.sce b/2258/CH1/EX1.13/1_13.sce
new file mode 100755
index 000000000..1236b90f6
--- /dev/null
+++ b/2258/CH1/EX1.13/1_13.sce
@@ -0,0 +1,13 @@
+clc();

+clear;

+// To calculate the wavelength of thermal neutron

+m=1.676*10^(-27);    //mass of neutron in kg

+h=6.62*10^(-34);

+E=0.025;   //kinetic energy in eV

+Ej=E*1.6*10^-19;   //kinetic energy in J

+v=sqrt(2*Ej/m);   //velocity in m/s

+lamda=h/(m*v);    //wavelength in m

+printf("The neutrons wavelength in metres is");

+disp(lamda);

+lamda_A=lamda*10^10;   //de broglie wavelength in armstrong

+printf("The wavelength is %f Armstrong",lamda_A);

diff --git a/2258/CH1/EX1.14/1_14.sce b/2258/CH1/EX1.14/1_14.sce
new file mode 100755
index 000000000..6843936c9
--- /dev/null
+++ b/2258/CH1/EX1.14/1_14.sce
@@ -0,0 +1,7 @@
+clc();

+clear;

+// To calculate the wavelength of an electron

+V=10;   //potential in kV

+V=V*10^3;   //potential in V

+lamda=12.26/sqrt(V);    //wavelength

+printf("The wavelength is %f Armstrong",lamda);

diff --git a/2258/CH1/EX1.15/1_15.sce b/2258/CH1/EX1.15/1_15.sce
new file mode 100755
index 000000000..900ad61c3
--- /dev/null
+++ b/2258/CH1/EX1.15/1_15.sce
@@ -0,0 +1,24 @@
+clc();

+clear;

+// To calculate the first three permitted levels of electron

+h=6.626*10^(-34);

+m=9.1*10^-31;   //mass in kg

+L=1;    //width in armstrong

+L=L*10^-10;   //width in m

+//permitted electron energies En=(n^2*h^2)/(8*m*L^2)

+//let X = h^2/(8*m*L^2)

+X = h^2/(8*m*L^2);    //energy in J

+XeV=X/(1.6*10^-19);   //energy in eV

+//in the 1st level n1=1

+n1=1;

+E1=(n1^2)*XeV;    //energy in eV

+printf("minimum energy the electron can have is %f eV",E1);

+//in second level n2=2

+n2=2;

+E2=(n2^2)*XeV;    //energy in eV

+//in third level n3=

+n3=3;

+E3=(n3^2)*XeV;    //energy in eV

+printf("other values of energy are %f eV and %f eV",E2,E3);

+

+//answers given in the book are wrong

diff --git a/2258/CH1/EX1.16/1_16.sce b/2258/CH1/EX1.16/1_16.sce
new file mode 100755
index 000000000..b12fc9eac
--- /dev/null
+++ b/2258/CH1/EX1.16/1_16.sce
@@ -0,0 +1,13 @@
+clc();

+clear;

+// To calculate the probability of finding the particle

+n=1;   //lowest state

+L=10;    //width in armstrong

+L=L*10^-10;    //width in m

+x=L/2;

+delta_x=1;    //interval in armstrong

+delta_x=delta_x*10^-10;    //interval in m

+psi1=(sqrt(2/L))*sin(%pi*x/L);

+A=psi1^2;

+P=A*delta_x;

+printf("probability of finding the particle is %f",P);

diff --git a/2258/CH1/EX1.17/1_17.sce b/2258/CH1/EX1.17/1_17.sce
new file mode 100755
index 000000000..190372792
--- /dev/null
+++ b/2258/CH1/EX1.17/1_17.sce
@@ -0,0 +1,14 @@
+clc();

+clear;

+// To calculate the Fermi energy of the metal

+d=970;   //density of Na in kg/m^3

+n=6.02*10^26;

+h=6.62*10^(-34);

+m=9.1*10^-31;   //mass in kg

+w=23;   //atomic weight 

+N=(d*n)/w;   //number of atoms per m^3

+A=(h^2)/(8*m);

+B=(3*N)/%pi;

+Ef=A*B^(2/3);

+EfeV=Ef/(1.6*10^-19);

+printf("fermi energy of Na is %f eV",EfeV);

diff --git a/2258/CH1/EX1.18/1_18.sce b/2258/CH1/EX1.18/1_18.sce
new file mode 100755
index 000000000..16a230e5d
--- /dev/null
+++ b/2258/CH1/EX1.18/1_18.sce
@@ -0,0 +1,16 @@
+clc();

+clear;

+// To calculate the lowest energy of electron

+n1=1;

+n2=1;

+n3=1;    //values in lowest energy

+h=6.62*10^(-34);

+m=9.1*10^-31;   //mass in kg

+L=0.1;   //side in nm

+L=L*10^-9;    //side in m

+n=(n1^2)+(n2^2)+(n3^2);

+E1=(n*h^2)/(8*m*L^2);    //energy in j

+E1eV=E1/(1.6*10^-19);    //energy in eV

+printf("lowest energy of electron in Joule is");

+disp(E1);

+printf("lowest energy of electron is %f eV",E1eV);

diff --git a/2258/CH1/EX1.19/1_19.sce b/2258/CH1/EX1.19/1_19.sce
new file mode 100755
index 000000000..273f364a1
--- /dev/null
+++ b/2258/CH1/EX1.19/1_19.sce
@@ -0,0 +1,11 @@
+clc();

+clear;

+// To calculate the de broglie wavelength of neutron

+mn=1.676*10^-27;   //mass of neutron in kg

+me=9.1*10^-31;    //mass of electron in kg

+h=6.62*10^(-34);

+c=3*10^8;    //velocity of light in m/sec

+En=2*me*c^2;

+lamda=h/sqrt(2*mn*En);   //wavelength in m

+lamda_A=lamda*10^10;    //converting lamda from m to A

+printf("The de broglie wavelength is %f Angstrom",lamda_A);

diff --git a/2258/CH1/EX1.2/1_2.sce b/2258/CH1/EX1.2/1_2.sce
new file mode 100755
index 000000000..feec367e7
--- /dev/null
+++ b/2258/CH1/EX1.2/1_2.sce
@@ -0,0 +1,8 @@
+clc();

+clear;

+// To calculate the de Broglie wavelength of an electron

+V=400;   //potential in Volts

+lamda=12.56/sqrt(V);    //de Broglie wavelength

+printf("The de Broglie wavelength is %f Armstrong",lamda);

+

+//answer given in the book is wrong

diff --git a/2258/CH1/EX1.20/1_20.sce b/2258/CH1/EX1.20/1_20.sce
new file mode 100755
index 000000000..678faefbf
--- /dev/null
+++ b/2258/CH1/EX1.20/1_20.sce
@@ -0,0 +1,26 @@
+clc();

+clear;

+// To calculate the energies of electron

+n2=2;    //second quantum state

+n4=4;    //fourth quantum state

+h=6.626*10^-34;

+m=9.1*10^-31;   //mass in kg

+a=2;   //potential box length in armstrong

+a=a*10^-10;    //length in m

+A=n2^2*h^2;

+B=8*m*a^2;

+E2=A/B;    //energy in j

+E2eV=E2/(1.6*10^-19);    //energy in eV

+C=n4^2*h^2;

+E4=C/B;    //energy in j

+E4eV=E4/(1.6*10^-19);    //energy in eV

+printf("energy corresponding to second quantum state in Joule is");

+disp(E2);

+printf("energy corresponding to second quantum state in eV is");

+disp(E2eV);

+printf("energy corresponding to fourth quantum state in Joule is");

+disp(E4);

+printf("energy corresponding to fourth quantum state in eV is");

+disp(E4eV);

+

+//answers given in the book are wrong

diff --git a/2258/CH1/EX1.21/1_21.sce b/2258/CH1/EX1.21/1_21.sce
new file mode 100755
index 000000000..fe539cda3
--- /dev/null
+++ b/2258/CH1/EX1.21/1_21.sce
@@ -0,0 +1,9 @@
+clc();

+clear;

+// To calculate the spacing of the crystal

+V=344;   //accelerated voltage in V

+n=1;    //first reflection

+theta=60;   //glancing angle in degrees

+lamda=12.27/sqrt(V);

+d=(n*lamda)/(2*sind(theta));

+printf("The spacing of the crystal is %f Angstrom",d);

diff --git a/2258/CH1/EX1.22/1_22.sce b/2258/CH1/EX1.22/1_22.sce
new file mode 100755
index 000000000..d737e6a35
--- /dev/null
+++ b/2258/CH1/EX1.22/1_22.sce
@@ -0,0 +1,27 @@
+clc();

+clear;

+// To calculate the energies of electron

+n2=2;    //second quantum state

+n3=3;    //fourth quantum state

+h=6.626*10^-34;

+m=9.1*10^-31;   //mass in kg

+a=1*10^-10;    //width of potential well in m

+B=8*m*a^2;

+E1=h^2/B;   //ground state energy

+E1eV=E1/(1.6*10^-19);    //energy in eV

+A=n2^2*h^2;

+E2=A/B;    //energy in j

+E2eV=E2/(1.6*10^-19);    //energy in eV

+C=n3^2*h^2;

+E3=C/B;    //energy in j

+E3eV=E3/(1.6*10^-19);    //energy in eV

+printf("ground state energy in Joule is");

+disp(E1);

+printf("ground state energy in eV is");

+disp(E1eV);

+printf("first energy state in eV is");

+disp(E2eV);

+printf("second energy state in eV is");

+disp(E3eV);

+

+//answers given in the book are wrong by one decimal

diff --git a/2258/CH1/EX1.23/1_23.sce b/2258/CH1/EX1.23/1_23.sce
new file mode 100755
index 000000000..488c066d1
--- /dev/null
+++ b/2258/CH1/EX1.23/1_23.sce
@@ -0,0 +1,13 @@
+clc();

+clear;

+// To calculate the energy required to jump an electron

+n3=3;    //fourth quantum state

+h=6.626*10^-34;

+m=9.1*10^-31;   //mass in kg

+//ground state energy E1 = h^2/(8*m*a^2)

+//second excited state E3 = (9*h^2)/(8*m*a^2)

+//required energy E = E3-E1

+//E = (9*h^2)/(8*m*a^2) - h^2/(8*m*a^2)

+//E = (h^2/(8*m*a^2))*(9-1)

+//therefore E = (8*h^2)/(8*m*a^2)

+//hence E = (h^2)/(m*a^2)

diff --git a/2258/CH1/EX1.24/1_24.sce b/2258/CH1/EX1.24/1_24.sce
new file mode 100755
index 000000000..3e7b149bc
--- /dev/null
+++ b/2258/CH1/EX1.24/1_24.sce
@@ -0,0 +1,10 @@
+clc();

+clear;

+// To calculate the minimum uncertainity in velocity

+delta_x=10^-8;   //length of box in m

+h=6.626*10^-34;

+m=9.1*10^-31;   //mass in kg

+delta_v=h/(m*delta_x);    //uncertainity in m/sec

+delta_vk=delta_v*10^-3;   //uncertainity in km/sec

+printf("minimum uncertainity in velocity is %f m/sec",delta_v);

+printf("minimum uncertainity in velocity is %f km/sec",delta_vk);

diff --git a/2258/CH1/EX1.25/1_25.sce b/2258/CH1/EX1.25/1_25.sce
new file mode 100755
index 000000000..b3c41e65f
--- /dev/null
+++ b/2258/CH1/EX1.25/1_25.sce
@@ -0,0 +1,12 @@
+clc();

+clear;

+// To calculate the de broglie wavelength of proton

+mp=1.6*10^-27;   //mass of proton in kg

+me=9.1*10^-31;    //mass of electron in kg

+h=6.626*10^(-34);

+c=3*10^10;    //velocity of light in m/sec

+Ep=me*c^2;

+lamda=h/sqrt(2*mp*Ep);   //wavelength in m

+lamda_A=lamda*10^10;    //converting lamda from m to A

+printf("The de broglie wavelength in Angstrom is");

+disp(lamda_A);

diff --git a/2258/CH1/EX1.26/1_26.sce b/2258/CH1/EX1.26/1_26.sce
new file mode 100755
index 000000000..ab975ced1
--- /dev/null
+++ b/2258/CH1/EX1.26/1_26.sce
@@ -0,0 +1,19 @@
+clc();

+clear;

+// To calculate the glancing angle

+m=1.675*10^(-27);    //mass of neutron in kg

+h=6.626*10^(-34);

+n=1;   //diffractive order

+d=0.314;   //spacing in nm

+d=d*10^-9;   //spacing in m

+E=0.04;   //kinetic energy in eV

+Ej=E*1.6*10^-19;   //kinetic energy in J

+lamda=h/sqrt(2*m*Ej);   //de Broglie wavelength

+lamdaA=lamda*10^9;   //converting wavelength from m to nm

+theta=asind((n*lamda)/(2*d));

+printf("The de Broglie wavelength in metres is");

+disp(lamda);

+printf("The de Broglie wavelength is %f nm",lamdaA);

+printf("glancing angle is %f degrees",theta);

+

+//answer given in the book is wrong

diff --git a/2258/CH1/EX1.3/1_3.sce b/2258/CH1/EX1.3/1_3.sce
new file mode 100755
index 000000000..ebd5d71e5
--- /dev/null
+++ b/2258/CH1/EX1.3/1_3.sce
@@ -0,0 +1,12 @@
+clc();

+clear;

+// To calculate the de Broglie wavelength of neutron

+m=1.674*10^(-27);    //mass of neutron in kg

+h=6.626*10^(-34);

+E=0.025;   //kinetic energy in eV

+Ej=E*1.6*10^-19;   //kinetic energy in J

+lamda=h/sqrt(2*m*Ej);   //de Broglie wavelength

+printf("The de Broglie wavelength in metres is");

+disp(lamda);

+lamdaA=lamda*10^10;   //converting wavelength from m to Armstrong

+printf("The de Broglie wavelength is %f Armstrong",lamdaA);

diff --git a/2258/CH1/EX1.4/1_4.sce b/2258/CH1/EX1.4/1_4.sce
new file mode 100755
index 000000000..3a6b4deff
--- /dev/null
+++ b/2258/CH1/EX1.4/1_4.sce
@@ -0,0 +1,7 @@
+

+clc();

+clear;

+// To calculate the wavelength of an electron

+V=1600;   //potential in Volts

+lamda=12.26/sqrt(V);    //de Broglie wavelength

+printf("The de Broglie wavelength is %3.1f Angstrom",lamda);

diff --git a/2258/CH1/EX1.5/1_5.sce b/2258/CH1/EX1.5/1_5.sce
new file mode 100755
index 000000000..2ecd531b7
--- /dev/null
+++ b/2258/CH1/EX1.5/1_5.sce
@@ -0,0 +1,9 @@
+clc();

+clear;

+// To calculate the uncertainity in momentum

+deltax=0.2;   //distance in armstrong

+delta_xm=deltax*10^-10;    //distance in m

+h=6.626*10^(-34);

+delta_p=h/(2*%pi*delta_xm);

+printf("The uncertainity in momentum of electron in kg m/sec is");

+disp(delta_p);

diff --git a/2258/CH1/EX1.6/1_6.sce b/2258/CH1/EX1.6/1_6.sce
new file mode 100755
index 000000000..fe0a774ed
--- /dev/null
+++ b/2258/CH1/EX1.6/1_6.sce
@@ -0,0 +1,18 @@
+clc();

+clear;

+// To calculate the lowest energy of electron

+n1=1;

+n2=1;

+n3=1;    //values in lowest energy

+h=6.62*10^(-34);

+M=9.1*10^-31;   //mass in kg

+L=0.1;   //side in nm

+L=L*10^-9;    //side in m

+n=(n1^2)+(n2^2)+(n3^2);

+E1=(n*h^2)/(8*M*L^2);    //energy in j

+E1eV=E1/(1.6*10^-19);    //energy in eV

+printf("lowest energy of electron in Joule is");

+disp(E1);

+printf("lowest energy of electron is %f eV",E1eV);

+

+//answer for lowest energy in eV given in the book is wrong

diff --git a/2258/CH1/EX1.7/1_7.sce b/2258/CH1/EX1.7/1_7.sce
new file mode 100755
index 000000000..0906354a9
--- /dev/null
+++ b/2258/CH1/EX1.7/1_7.sce
@@ -0,0 +1,10 @@
+clc();

+clear;

+// To calculate the wavelength associated with electron

+M=9.1*10^-31;    //mass of electron in kg

+h=6.66*10^(-34);

+E=2000;   //energy in eV

+Ej=E*1.6*10^-19;   //energy in J

+lamda=h/sqrt(2*M*Ej);   //wavelength in m

+lamda_nm=lamda*10^9;    //converting lamda from m to nm

+printf("The wavelength associated with electron is %f nm",lamda_nm);

diff --git a/2258/CH1/EX1.8/1_8.sce b/2258/CH1/EX1.8/1_8.sce
new file mode 100755
index 000000000..c8eacb32a
--- /dev/null
+++ b/2258/CH1/EX1.8/1_8.sce
@@ -0,0 +1,12 @@
+clc();

+clear;

+// To calculate the minimum energy of electron

+n=1;    //for minimum energy

+h=6.626*10^(-34);

+m=9.1*10^-31;   //mass in kg

+L=4*10^-10;   //size in m

+E1=(n*h^2)/(8*m*L^2);    //energy in j

+printf("lowest energy of electron in Joule is");

+disp(E1);

+

+//answer given in the book is wrong

diff --git a/2258/CH1/EX1.9/1_9.sce b/2258/CH1/EX1.9/1_9.sce
new file mode 100755
index 000000000..695437c56
--- /dev/null
+++ b/2258/CH1/EX1.9/1_9.sce
@@ -0,0 +1,16 @@
+clc();

+clear;

+// To calculate the velocity and kinetic energy of electron

+h=6.626*10^(-34);

+m=9.1*10^-31;   //mass in kg

+lamda=1.66*10^-10;   //wavelength in m

+v=h/(m*lamda);    //velocity in m/sec

+printf("velocity of electron in m/sec is");

+disp(v);

+v_km=v*10^-3;    //velocity in km/sec

+printf("velocity of electron is %f km/sec",v_km);

+E=(1/2)*m*v^2;    //kinetic energy in joule

+EeV=E/(1.6*10^-19);    //energy in eV

+printf("kinetic energy of electron in Joule is");

+disp(E);

+printf("kinetic energy of electron is %f eV",EeV);