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

---
 3822/CH9/EX9.4/Ex9_4.sce | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 3822/CH9/EX9.4/Ex9_4.sce

(limited to '3822/CH9/EX9.4/Ex9_4.sce')

diff --git a/3822/CH9/EX9.4/Ex9_4.sce b/3822/CH9/EX9.4/Ex9_4.sce
new file mode 100644
index 000000000..b15f36903
--- /dev/null
+++ b/3822/CH9/EX9.4/Ex9_4.sce
@@ -0,0 +1,17 @@
+
+//OptoElectronics and Fibre Optics Communication, by C.K Sarkar and B.C Sarkar
+//Example 9.4
+//OS=Windows 10
+////Scilab version Scilab 6.0.0-beta-2(64 bit)
+clc;
+clear;
+
+//given
+alpham=26.1;//angular limit of far field pattern in degrees
+NA=sind(alpham);//numerical aperture 
+L=16.7;//length of picture in cm
+
+AB=(L/2)/[tand(alpham)];//distance from the screen in cm
+mprintf("The numerical appertur is=%.2f ",NA);
+mprintf("\nThe distance from the screen is=%.2f cm",AB);
+//th answer vary due to rounding
-- 
cgit