List of top Physics Questions on Hydrostatics asked in MET

A uniform rod of length 2 m, specific gravity 0.5 and mass 2 kg is hinged at one end to the bottom of a tank of water (specific gravity = 1.0) filled upto a height of 1 m as shown in the figure. Taking the case \(\theta \neq 0°\), the force exerted by the hinge on the rod is

A small block of wood of specific gravity 0.5 is submerged at a depth of 1.2 m in a vessel filled with water. The vessel is accelerated upwards with an acceleration \(a_0 = g/2\). Time taken by the block to reach the surface, if it is released with zero initial velocity is

A glass flask having mass 390 g and an interior volume of 500 $cm³$ floats on water when it is less than half filled with water. The density of material of the flask is