One end a U-tube of unifrom bore (area A) cpmtaining mercury is connected to sunction pump .
Channel: Doubtnut
Date: 2021-11-02

One end a U-tube of unifrom bore (area A) cpmtaining mercury is connected to sunction pump . Because of it the level of liquid of density `rho` falls in one limb. When the pump is removed, the restoring force in the other limb is