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+// Example 2_5
+clc;clear;funcprot(0);
+// Given values
+T=20;// degree celsius
+sigma_s=0.073; // the surface tension of water in N/m
+phi=0; // the contact angle of water with glass in degree
+rho=1000;// kg/m^3
+g=9.81;// m/s^2
+R=0.3*10^-3; // Radius of glass tube in m
+
+//Calculation
+h=((2*sigma_s)/(rho*g*R))*cos(phi);// the capillary rise of water in m
+h=h*100;// m to cm
+printf('The capillary rise of water in a tube h=%0.1f cm\n',h);