2 files changed, 20 insertions, 0 deletions
diff --git a/1271/CH15/EX15.3/3.txt b/1271/CH15/EX15.3/3.txt
new file mode 100755
index 000000000..3d9ee8aea
--- /dev/null
+++ b/1271/CH15/EX15.3/3.txt
@@ -0,0 +1,5 @@
+ # PROBLEM 3 # 
+Standard formula used 
+ p = (2 * m * E * e)^(1/2) 
+
+ Percentage of uncertainty in momentum is 2.182918.
diff --git a/1271/CH15/EX15.3/example15_3.sce b/1271/CH15/EX15.3/example15_3.sce
new file mode 100755
index 000000000..92dab807c
--- /dev/null
+++ b/1271/CH15/EX15.3/example15_3.sce
@@ -0,0 +1,15 @@
+clc 
+// Given that 
+E = 500 // energy of electron in eV
+delta_x = 2e-10 // error in position in m
+e = 1.6e-19 // charge on an electron in C
+m = 9.1e-31 // mass of electron in kg
+h = 6.62e-34 // Planck constant in J-sec
+// Sample Problem 3 on page no. 15.25
+printf("\n # PROBLEM 3 # \n")
+printf("Standard formula used \n")
+printf(" p = (2 * m * E * e)^(1/2) \n")
+p = sqrt(2 * m * E * e)
+delta_p = h / (4 * %pi * delta_x)
+P = (delta_p / p) * 100
+printf("\n Percentage of uncertainty in momentum is %f.",P)