2 files changed, 14 insertions, 0 deletions
diff --git a/3411/CH6/EX6.7/Ex6_7.sce b/3411/CH6/EX6.7/Ex6_7.sce
new file mode 100644
index 000000000..51356e02b
--- /dev/null
+++ b/3411/CH6/EX6.7/Ex6_7.sce
@@ -0,0 +1,11 @@
+//Example 6_7
+clc();
+clear;
+//To calculate the no of photons emitted by the ruby laser
+p=1       //units in W
+lamda=694.3*10^-9
+h=6.63*10^-34
+c=3*10^8
+n=(p*lamda)/(h*c)
+printf("The no of photons emitted by the ruby laser is n=")
+disp(n)
diff --git a/3411/CH6/EX6.7/Ex6_7.txt b/3411/CH6/EX6.7/Ex6_7.txt
new file mode 100644
index 000000000..a05a14ee2
--- /dev/null
+++ b/3411/CH6/EX6.7/Ex6_7.txt
@@ -0,0 +1,3 @@
+The no of photons emitted by the ruby laser is n= 
+    3.491D+18  
+ 
+\ No newline at end of file