From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2780/CH8/EX8.5/Ex8_5.sce | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100755 2780/CH8/EX8.5/Ex8_5.sce

(limited to '2780/CH8/EX8.5/Ex8_5.sce')

diff --git a/2780/CH8/EX8.5/Ex8_5.sce b/2780/CH8/EX8.5/Ex8_5.sce
new file mode 100755
index 000000000..fc099e7e7
--- /dev/null
+++ b/2780/CH8/EX8.5/Ex8_5.sce
@@ -0,0 +1,12 @@
+clc
+//to calculate spacing of the crystal
+h=6.62*10^-34 //planck's constant in J-s
+m=9.1*10^-31 //mass of electron in kg
+V=344 //voltage in V
+e=1.6*10^-19
+lambda=h/sqrt(2*m*e*V) //wavelength in m
+//according to Bragg's law
+n=1
+//formula is 2*d*sintheta=n*lambda
+d=n*lambda/(2*sin(%pi/6))
+disp("the spacing of the crystal is d="+string(d)+"m")
-- 
cgit