A U tube manometer shown in figure is used to measure the gauge pressure of water of density ρ1 = 1000 kg/m3. If the density of manometer liquid ρ2 is 12000 kg/m3, h1 = 0.5 m & h2 = 1.0 m, gauge pressure at 'A', the centre of tube is (take g = 10 m/s2)
1
125 kPa
2
115 kPa
3
60 kPa
4
5 kPa