From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 3875/CH11/EX11.19/Ex11_19.sce | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 3875/CH11/EX11.19/Ex11_19.sce

(limited to '3875/CH11/EX11.19/Ex11_19.sce')

diff --git a/3875/CH11/EX11.19/Ex11_19.sce b/3875/CH11/EX11.19/Ex11_19.sce
new file mode 100644
index 000000000..063394f07
--- /dev/null
+++ b/3875/CH11/EX11.19/Ex11_19.sce
@@ -0,0 +1,18 @@
+clc;
+clear;
+H=6.626*10^-34 //Plancks constant in J-s
+m=9.1*10^-31 //mass in kg
+e=1.6*10^-19 //charge in C
+V_0=80 //Potential difference in V
+a=0.35 //lattice parameter in nm
+h=1 //x intercept of parallel plane
+k=1 //y intercept of parallel plane
+l=1 //z intercept of parallel plane
+
+//calculation
+lambda=H/sqrt(2*m*e*V_0) //wavelength in m
+d_111=(a/sqrt(h^2+k^2+l^2))*10^-9 //interplanar distance in m
+theta1_degrees= floor(asin((lambda)/(2*d_111))*(180/%pi)) //degrees part of angle
+theta1_minutes=((asin((lambda)/(2*d_111))*(180/%pi))-theta1_degrees)*60 //minutes part of angle
+mprintf("The Braggs angle is = %d degrees and %d minutes",theta1_degrees,theta1_minutes)
+//The answer varies due to round off error.
-- 
cgit