Question

147.Glass capillary tube of inner diameter .28 mm is lowered vertically into water in a vessel the pressure to be applied on the water in the capillary tube so that the water level in the tube is same as that in the vessel is( surface tension of water equals to 0.07 Newton per metre and atmospheric pressure equals to 10 to the power 5 Newton per metre square) 1)1000 2)100000 3)99000 4)101000

Answer 1