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+clc;
+d=2; //diameter of glass tube in mm
+r=(d/2)*10^-1 // radius of glass tube in cm
+T=0.0075*10^-2; // surface tension of water in kg/cm
+T1=0.052*10^-2; // surface tension of mercury in kg/cm
+// calculating capillary rise for water
+w=1000*10^-6; // specific weight of water in kg/cm^3
+s=1; //specific gravity of water 
+theta=0; // angle of contact between liquid and tube
+h=(2*T*cos(theta))/(s*w*r); // calculating height of capillary rise
+printf('height of capillary rise in water is %f cm\n',h);
+// calculating capillary rise for mercury
+s=13.6; //specific gravity of mercury
+theta=130; // angle of contact between mercury and tube
+h=(2*T1*cos(theta*(3.14/180)))/(s*w*r); // calculating height of capillary rise
+printf('height of capillary rise in mercury is %f cm/n ',h);
+disp('negative sign indicates decrease in height of mercury');