Oscillations of a Liquid in a U-Tube.
I. If a liquid column in a U-tube is depressed on one side and released, it executes SHM.
II. The restoring force is provided by the weight of the excess liquid column on the other side.
III. The time period depends on the density of the liquid.
IV. The time period is given by T = 2π√(h/g), where h is the height of the liquid column.
V. This is an example of SHM where inertia is provided by the fluid mass and elasticity by gravity.
