The diameter of the vertical tubes of a U-tube are 10 mm and 4mm. The tubes are filled with water. What wil be the difference of heights of water coloumns in the tubes? (angle of contact `theta=0^(@))`

Explanation

Given `d_(1)=10mm, r_(1)=5mm, d_(2)=4mm, r_(2)=2mm`
`Deltah=h_(2)-h_(1)`
`=(2T cos theta)/(rhog) [(1)/(r_(2))-(1)/(r_(1))]=(2 xx 0.072 xx 1)/(10^(3) xx 9.8 xx 10^(-3)) [1/2-1/5]=0.01469 xx ((5-2)/(10))`
`Deltah=4.4 xx 10^(-3)m`
This difference of heights of water columns in the tubes.