Question

A manometer has a well of cross-sectional area of 4cm2 and a tube of cross-sectional area 2cm2 the tube is inclined at an angle 30 degrees to the well. If the well is exposed to a source of pressure which result into a drop of liquid of 10cm3. Calculate the height liquid dropped in well.

Answer 1

$V=S_1h,$

$h=\frac V{S_1}=\frac{10}4=2.5~cm.$