1--one end of a u-tube of a uniform bore (area A) containing mercury is connected to a sanction pump . because of it the level of liquid of density p falls in one limb by x when the pump is removed, the restoring force in the other limb is
Ans--2xpAg
when a suction pump is removed the restoring force in the tube would be
F = mg, ..........(1)
As, density (p) = m/volume ,
mass = p* volume = p A * 2x where x = length of mercury fall in one side. so for two side in order to balance it = 2 x
by putting these values in the equation 1, we get
= pA2x * g = 2pAxg
F = mg, ..........(1)
As, density (p) = m/volume ,
mass = p* volume = p A * 2x where x = length of mercury fall in one side. so for two side in order to balance it = 2 x
by putting these values in the equation 1, we get
= pA2x * g = 2pAxg