blob: c3326bb730739706a70c0ffb660a745f0eb5d9d9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
//Example 5_15_u1
clc();
clear;
//To calculate the Braggs angle
h=6.63*10^-34 //units in m^2 kg s^-1
m=9.1*10^-31 //units in Kgs
e=1.6*10^-19 //units in coulombs
v=80 //units in volts
lamda=h/sqrt(2*m*e*v) //units in mts
lamda=lamda*10^9 //units in nm
a=0.35 //units in nm
h=1
k=1
l=1
d111=a/sqrt(h^2+k^2+l^2) //units in nm //units in nm
theta=asin(lamda/(2*d111)) //units in radians
theta=theta*180/%pi //units in degrees
printf("Braggs angle is theta=%.2fDegrees or 19Degrees40Minutes",theta)
|
