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

---
 1619/CH2/EX2.2.1/Example2_2_1.sce | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100755 1619/CH2/EX2.2.1/Example2_2_1.sce

(limited to '1619/CH2/EX2.2.1')

diff --git a/1619/CH2/EX2.2.1/Example2_2_1.sce b/1619/CH2/EX2.2.1/Example2_2_1.sce
new file mode 100755
index 000000000..93adc6463
--- /dev/null
+++ b/1619/CH2/EX2.2.1/Example2_2_1.sce
@@ -0,0 +1,14 @@
+// Example 2.2.1 page 2.4
+
+clc;
+clear;
+
+alpha= 3;   // average loss     Power decreases by 50% so P(0)/P(z)= 0.5
+lamda= 900*10^-9;   //wavelength
+z= 10*log10(0.5)/alpha;   //z is the length
+z= z*-1;
+printf("The length over which power decreases by 50%% is =%.2f Kms",z);
+
+z1= 10*log10(0.25)/alpha;     //Power decreases by 75% so P(0)/P(z)= 0.25
+z1=z1*-1;   //as distance cannot be negative...
+printf("\n\nThe length over which power decreases by 75%% is =%.2f Kms",z1);
-- 
cgit