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

---
 1271/CH14/EX14.13/13.txt           |  6 ++++++
 1271/CH14/EX14.13/example14_13.sce | 16 ++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100755 1271/CH14/EX14.13/13.txt
 create mode 100755 1271/CH14/EX14.13/example14_13.sce

(limited to '1271/CH14/EX14.13')

diff --git a/1271/CH14/EX14.13/13.txt b/1271/CH14/EX14.13/13.txt
new file mode 100755
index 000000000..60ddc75a5
--- /dev/null
+++ b/1271/CH14/EX14.13/13.txt
@@ -0,0 +1,6 @@
+ # PROBLEM 13 # 
+Standard formula used 
+  E_k = h*c/lambda 
+
+ From the above it is clear that the energy corresponding to wavelength 5000 A is i.e. 2.482500 found to be less than the work function i.e. 4.8 eV . So it will not be able to liberate an electron.
+ As the energy to wavelength 2000 A i.e. 6.206250 is greater than the work function. So it is sufficient to liberate electrons. 
diff --git a/1271/CH14/EX14.13/example14_13.sce b/1271/CH14/EX14.13/example14_13.sce
new file mode 100755
index 000000000..a28d22b8c
--- /dev/null
+++ b/1271/CH14/EX14.13/example14_13.sce
@@ -0,0 +1,16 @@
+clc 
+// Given that
+w = 4.8 // work function in eV
+lambda1 = 5e-7 // wavelength of incident radiation in first case in meter
+lambda2 = 2e-7 // wavelength of incident radiation in second case in meter
+h = 6.62e-34 // Planck constant in J-sec
+c = 3e8 // speed of light in m/sec
+e = 1.6e-19 // charge on an electron in C
+// Sample Problem 13 on page no. 14.24
+printf("\n # PROBLEM 13 # \n")
+printf("Standard formula used \n ")
+printf(" E_k = h*c/lambda \n")
+E_k1 = h*c/lambda1
+E_k2 = h*c / lambda2
+printf("\n From the above it is clear that the energy corresponding to wavelength 5000 A is i.e. %f found to be less than the work function i.e. 4.8 eV . So it will not be able to liberate an electron.\n As the energy to wavelength 2000 A i.e. %f is greater than the work function. So it is sufficient to liberate electrons. ",E_k1/e,E_k2/e)
+                                                               
-- 
cgit