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diff --git a/2243/CH1/EX1.4/Ex1_4.sce b/2243/CH1/EX1.4/Ex1_4.sce
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+++ b/2243/CH1/EX1.4/Ex1_4.sce
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+clc();
+clear;
+//Given
+// (a) Newton's Theory
+// v= (P/rho)^2  , P= Pressure , rho = density
+P = 76; // 76 cm of Hg pressure
+V= 330 ; // velocity of sound in m/s
+rho = 0.001293; // density for dry air at 0 degrees celsius in g/cm^3
+g = 980;//gravitational acceleration in cm/s^2
+//Density of mercury at room temperature is 13.6 g/cm^3 
+// 1 cm^2 = 1.0*10^-4 m^2
+v = sqrt(((P*13.6*g)/rho)*10^-4); // velocity of sound in m/s
+p= ((V-v)/V)*100; // % lower than the experimental value
+printf("(a) It is is %d percentage lower than the experimental value.\n\n",p);
+
+// (b) Laplace's Theory 
+// v= ((gama*P)/rho)^2., gamma = adiabatic index Thus,
+//Given :
+gama = 1.41 // Adiabatic index
+//Density of mercury at room temperature is 13.6 g/cm^3 
+// 1 cm^2 = 1.0*10^-4 m^2
+v1 = sqrt(((gama*P*13.6*g)/rho)*10^-4);// velocity of sound in m/s
+p1 = ((V-round(v1))/V)*100;// % higher than the eperimental value
+printf("(b) It is %.1f  percantage  higher than the experimental value.\n",abs(p1));
+
diff --git a/2243/CH1/EX1.4/Res1_4.txt b/2243/CH1/EX1.4/Res1_4.txt
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+(a) It is is 15 percentage lower than the experimental value.
+
+(b) It is 0.6  percantage  higher than the experimental value.
+ 
+\ No newline at end of file