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Laws of Liquid Pressures for a Static Liquid

  1. Pressure about a point in a liquid is the same in all directions.
  2. Pressure is same at all points in a horizontal plane.
  3. The pressure at a point in a fluid at rest depends on its depth h (i.e., P ∝ h). In other words, pressure exerted by a liquid increases with depth.
  4. Liquid pressure depends upon the density of the liquid.
  5. Liquid exerts pressure on the side walls of the container.
  6. A liquid seeks its own level.
  • Pressure exerted by a liquid increases with depth. It is for this reason that the walls of a dam are made very thick at the base, so that they can withstand a greater pressure at the greater depth.
  • A liquid seeks its own level. It is for this reason that the storage tanks are placed at higher levels, i.e., on the top of buildings.




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