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

---
 1871/CH4/EX4.29/Ch04Ex29.sce | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 1871/CH4/EX4.29/Ch04Ex29.sce

(limited to '1871/CH4/EX4.29')

diff --git a/1871/CH4/EX4.29/Ch04Ex29.sce b/1871/CH4/EX4.29/Ch04Ex29.sce
new file mode 100755
index 000000000..ecafde2b0
--- /dev/null
+++ b/1871/CH4/EX4.29/Ch04Ex29.sce
@@ -0,0 +1,17 @@
+// Scilab code Ex4.29 : Pg:168 (2008)
+clc;clear;
+lambda1 = 4e-005;    // First wavelength, cm
+lambda2 = 7e-005;    // Second wavelength, cm
+t = 0.001;    // The thickness of the air film, cm
+mu = 1;    // Refractive index of the air film
+i = 30;    // Angle of incidence, degree
+// As mu = sin_i/sin_r = 1, so that sin_i = sin_r 
+sin_r = sind(30);    // Sine of angle of reflection from Snell's Law, degree
+cos_r = sqrt(1-sin_r^2);    // Cosine of angle of reflection from the trigonometric identity, degree
+n1 = 2*mu*t*cos_r/lambda1;    // Number of dark bands seen at first wavelength
+n2 = 2*mu*t*cos_r/lambda2;    // Number of dark bands seen at second wavelength
+n = n1 - n2;    // Number of dark bands observed within the given spectral range
+printf("\nThe number of dark bands observed within the given spectral range = %2d", ceil(n));
+
+// Result 
+// The number of dark bands observed within the given spectral range = 19
\ No newline at end of file
-- 
cgit