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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');