What should be the radius of a capillary tube if the water has to rise to a height of 6cm in it. Surface tension of water =7.2xx10^(-2)Nm^(-1) (g=10ms^(-2))

What should be the radius of a capillary tube if the water has to rise

1.	What should be the radius of a capillary tube if the water has to rise to a height of 6cm in it. Surface tension of water =7.2xx10^(-2)Nm^(-1) (g=10ms^(-2))
Answer» Solution :Height `(H)=6cm=6xx10^(-2)m` Surface tension of WATER `(S)=7.2xx10^(-2)NM^(-1)` for water `theta=0, costheta=1` Density of water `(RHO)=1000kgm^(-3)` Surface tension `(S)=(hrrhog)/(2costheta)` Substituting the VALUES `7.2xx10^(-2)=((6xx10^(-2))(r)(1000)(10))/(2xx1)` `r=0.24xx10^(-3)m`