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

---
 1655/CH7/EX7.5.5/Example_7_5_5.sce | 22 ++++++++++++++++++++++
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 create mode 100755 1655/CH7/EX7.5.5/Example_7_5_5.sce

(limited to '1655/CH7/EX7.5.5/Example_7_5_5.sce')

diff --git a/1655/CH7/EX7.5.5/Example_7_5_5.sce b/1655/CH7/EX7.5.5/Example_7_5_5.sce
new file mode 100755
index 000000000..458cd4ba8
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+++ b/1655/CH7/EX7.5.5/Example_7_5_5.sce
@@ -0,0 +1,22 @@
+
+// Example 7.5.5  page 7.25
+
+clc;
+clear;
+
+h=6.626d-34;    //plank's constant
+c=3d8;      //speed of light
+eta=70/100; //quantum efficiency
+I=3d-6;     //photocurrent 
+E=1.8d-19;  //energy of photns
+q=1.6d-19;  //charge of electron
+
+lamda=h*c/E;   //computing wavelength
+R=eta*q*lamda/(h*c);    //computing responsivity
+Popt=I/R;       //computing optical power
+lamda=lamda*10^6;
+Popt=Popt*10^6;
+
+printf("\nWavelength is %.2f micrometer.\nResponsivity is %.3f A/W.\nIncident optical power required is %.3f microWatt.",lamda,R,Popt);
+
+//answer of Popt in the book is calculated as 4.823, deviation of 0.002
-- 
cgit