**Hydrostatic paradox** explains why:
AWater flows from low to high pressure
BLiquid in interconnected vessels reaches the same level regardless of vessel shape, because pressure depends only on column height
CPressure increases with depth
DAtmospheric pressure varies with altitude
Answer & Solution
Correct answer: B. Liquid in interconnected vessels reaches the same level regardless of vessel shape, because pressure depends only on column height
Hydrostatic paradox: pressure at the base of all interconnected vessels is the same since $p = h\rho g$ depends only on $h$ (not the shape/volume above). So liquid levels equalise — apparently 'paradoxical' if you (wrongly) thought wider vessels contain more weight at the base.
Related questions
A drop of water of radius 1 mm is broken into 1000 droplets of equal size. The ratio of toTwo soap bubbles of radii 3 cm and 5 cm are blown at the ends of a tube and the tube is opThe excess pressure inside a **soap bubble** of radius $r$ and surface tension $T$ is:The **excess pressure** inside a spherical liquid drop of radius $r$ and surface tension $In a mercury capillary, the mercury level is 8 mm **below** the reservoir level in a tube Water rises 4 cm in a capillary of radius 0.5 mm. If the same capillary is dipped in a liqThe terminal velocity of a sphere of radius $r$, density $\rho$ falling through a fluid ofA car of mass 1000 kg traveling at 50 km/h has hydraulic brakes with master cylinder area