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

---
 1694/CH2/EX2.15/EX2_15.sce | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 1694/CH2/EX2.15/EX2_15.sce

(limited to '1694/CH2/EX2.15')

diff --git a/1694/CH2/EX2.15/EX2_15.sce b/1694/CH2/EX2.15/EX2_15.sce
new file mode 100644
index 000000000..166b64018
--- /dev/null
+++ b/1694/CH2/EX2.15/EX2_15.sce
@@ -0,0 +1,21 @@
+clear;
+clc;
+printf("\nEx2.15\n");
+//page no.-63
+//given
+m=9.11*10^-31;.............//mass of e in kg
+E=1.6*10^-15;..............//energy in joule
+h=6.625*10^-34;.............//planck's constant
+d=5.5*10^-11;...............//interplanar spacing in m
+//we knoe , E=m*v^2/2
+
+v=sqrt((2*E)/m);..........//velocity in m/s
+//By debroglie relationship
+
+lambda=h/sqrt(2*m*E)...........//wavelength in m
+
+//By bragg's eq. 2*d*sind(theta)=n*lambda
+//n=1, for first order 
+theta=asind(lambda/(2*d))..............//angle of deviation
+
+printf("\nangle of deviation is 6.4 degree\n");
-- 
cgit