1 files changed, 29 insertions, 0 deletions
diff --git a/3763/CH3/EX3.4/Ex3_4.sce b/3763/CH3/EX3.4/Ex3_4.sce
new file mode 100644
index 000000000..1a0159aa3
--- /dev/null
+++ b/3763/CH3/EX3.4/Ex3_4.sce
@@ -0,0 +1,29 @@
+clear
+//
+//
+//
+
+//Variable declaration
+n=4      
+A=107.87    //atomic weight
+rho=10500     //density(kg/m**3)
+N=6.02*10**26    //number of molecules
+theta=19+(12/60)   //angle(degrees)
+h=1
+k=1
+l=1
+h0=6.625*10**-34     //planck constant
+c=3*10**8     //velocity of light(m/s)
+e=1.6*10**-19   //charge(coulomb)
+
+//Calculation
+theta=theta*%pi/180     //angle(radian)
+a=(n*A/(N*rho))**(1/3)
+d=a*10**10/sqrt(h**2+k**2+l**2)      
+lamda=2*d*sin(theta)     //wavelength of x rays(angstrom)
+E=h0*c/(lamda*10**-10*e)      //energy of x rays(eV)
+
+//Result
+printf("\n wavelength of x rays is %0.3f  angstrom",lamda)
+printf("\n answer varies due to rounding off errors")
+printf("\n energy of x rays is %0.0f  *10**3 eV",E/10**3)