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

---
 1952/CH2/EX2.2/Ex2_2.sce | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100755 1952/CH2/EX2.2/Ex2_2.sce

(limited to '1952/CH2/EX2.2/Ex2_2.sce')

diff --git a/1952/CH2/EX2.2/Ex2_2.sce b/1952/CH2/EX2.2/Ex2_2.sce
new file mode 100755
index 000000000..3b7f409b5
--- /dev/null
+++ b/1952/CH2/EX2.2/Ex2_2.sce
@@ -0,0 +1,12 @@
+// chapter 2 , Example2 2 , pg 53
+T=250+273 //temperature(in kelvin)   (converting celsius into kelvin)
+h=6.625*10^-34//plancks constant(in Js)
+c=3*10^8//speed of light(in m/s)
+lam=590*10^-9//wavelength(in m)
+k=1.38*10^-23//boltzman constant (in (m^2*Kg)/(s^2*k))
+N=1/(exp((h*c)/(lam*k*T))-1)  //N=((n21)'/(n21))   ratio of stimulated  emission to spontaneous  emission
+printf("Ratio of stimulated  emission to spontaneous  emission is")
+disp(N)
+
+
+//answer given is wrong
-- 
cgit