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diff --git a/1397/CH2/EX2.4/2_4.sce b/1397/CH2/EX2.4/2_4.sce
new file mode 100755
index 000000000..b6fe82c9f
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+++ b/1397/CH2/EX2.4/2_4.sce
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+//clc();
+clear;
+//To determine the natural frequency of iron
+l=40*10^(-3);           //length of pure iron rod in metres
+rho=7.25*10^3;          //density of pure iron in kg/m^3
+Y=115*10^9;             //youngs modulus in N/m^2
+new=(sqrt(Y/rho))*10^(-3)/(2*l);
+printf("the natural frequency of pure iron is %f KHz",new);