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diff --git a/2021/CH2/EX2.1/EX2_1.sce b/2021/CH2/EX2.1/EX2_1.sce
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+//Finding of Pressure Intensity
+//Given
+p=73.575*10^4;       //Pressure in N/mm^2
+Patm=76;
+rho=1000;             //Density in kg/m^3
+spgr=13.6;
+g=9.81;                //Gravitational force in m/s^2
+//To Find 
+//Gauge units
+P1=p/(rho*g);
+P2=p/(spgr*rho*g);
+//Absolute units
+P3=(Patm*spgr)/100;
+P4=(Patm*spgr*rho*g)/100;
+P5=P2/10000;
+P6=p+P5;
+P7=75+P5;
+P8=5.5147+(Patm/100);
+disp("Gauge Units ");
+disp("Pressure ="+string(P1)+" meter of water");
+disp("Pressure ="+string(P2)+" meter of mercury");
+disp("Pressure ="+string(P3)+" meter of water");
+disp("Pressure ="+string(P5)+" N/cm^2");
+disp("Pressure ="+string(P7)+" meter of water");
+disp("Pressure ="+string(P8)+" meter of Mercury");
diff --git a/2021/CH2/EX2.1/Ex2_1.pdf b/2021/CH2/EX2.1/Ex2_1.pdf
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+++ b/2021/CH2/EX2.1/Ex2_1.pdf