2 files changed, 17 insertions, 0 deletions
diff --git a/3648/CH27/EX27.11/Ex27_11.sce b/3648/CH27/EX27.11/Ex27_11.sce
new file mode 100644
index 000000000..7c118447d
--- /dev/null
+++ b/3648/CH27/EX27.11/Ex27_11.sce
@@ -0,0 +1,14 @@
+//Example 27_11
+clc();
+clear;
+//To find the activity of sr
+t1=28    //units in Years
+t1=t1*86400*365    //Units in sec
+acti=6.022*10^26      //Units of Bq
+m1=90     //Units in Kg
+m2=0.001    //Units in Kg
+N=(m2/m1)*acti    //Units in constant
+activity=0.693*N/t1    //Units in Bq
+printf("The activity of sr=")
+disp(activity)
+printf("Bq")
diff --git a/3648/CH27/EX27.11/Ex27_11.txt b/3648/CH27/EX27.11/Ex27_11.txt
new file mode 100644
index 000000000..29052c770
--- /dev/null
+++ b/3648/CH27/EX27.11/Ex27_11.txt
@@ -0,0 +1,3 @@
+The activity of sr= 
+    5.251D+12  
+Bq 
+\ No newline at end of file