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

---
 1847/CH7/EX7.3/Ch07Ex3.sce | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100755 1847/CH7/EX7.3/Ch07Ex3.sce

(limited to '1847/CH7/EX7.3/Ch07Ex3.sce')

diff --git a/1847/CH7/EX7.3/Ch07Ex3.sce b/1847/CH7/EX7.3/Ch07Ex3.sce
new file mode 100755
index 000000000..4aae2c44d
--- /dev/null
+++ b/1847/CH7/EX7.3/Ch07Ex3.sce
@@ -0,0 +1,18 @@
+// Scilab Code Ex7.3:: Page-7.8 (2009)
+clc; clear;
+n1 = 1.46;     // Refractive index of the core material
+delta = 0.01;   // Relative refractive index difference
+NA = n1*sqrt(2*delta);   // Numerical aperture for the fibre 
+theta_Q = %pi*NA^2;   // Solid acceptance angle of optical fibre for small angles, radians
+// As relative refractive index, delta = 1-n2/n1, solving for n2
+n2 = n1*(1-delta);   // Refractive index of cladding
+phi_C = asind(n2/n1);   // Critical angle of optical fibre, degrees
+
+printf("\nThe numerical aperture for the fibre  = %4.2f", NA);
+printf("\nThe solid acceptance angle of the optical fibre  = %4.2f radians", theta_Q);
+printf("\nThe critical angle of optical fibre = %4.1f degrees", phi_C);
+
+// Result 
+// The numerical aperture for the fibre  = 0.21
+// The solid acceptance angle of the optical fibre  = 0.13 radians
+// The critical angle of optical fibre = 81.9 degrees 
-- 
cgit