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/CH3/EX3.19/Ex3_19.sce | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100755 2780/CH3/EX3.19/Ex3_19.sce

(limited to '2780/CH3/EX3.19')

diff --git a/2780/CH3/EX3.19/Ex3_19.sce b/2780/CH3/EX3.19/Ex3_19.sce
new file mode 100755
index 000000000..9844e9764
--- /dev/null
+++ b/2780/CH3/EX3.19/Ex3_19.sce
@@ -0,0 +1,12 @@
+clc
+//to calculate which spectral line in 5th order will overlap with 4th order line of 5890 angstrom
+//the grating equation for principal maxima is (e+d)*sin theta =n*lambda
+n1=5 
+                //order of spectrum 
+n2=4
+lambda2=5890*10^-8 //wavelength of 4th order spectrum in cm
+//(e+d)*sin theta=5*lambda-------------eq(1)
+//(e+d)*sin theta=4*5890*10^-8-----------------eq(2)
+//from eq(1) and eq(2) ,we get
+lambda1=n2*lambda2/n1
+disp("wavelength of 5th order spectrum is lambda1="+string(lambda1)+"cm")
-- 
cgit