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Mechanical Properties Of Fluids


  • Buoyancy

    • Buoyant force = Up thrust by a fluid on a partially or fully immersed object is buoyancy or buoyant force. [Depends on fluid density]

    • Buoyant force = Weight of displaced liquid

    • Buoyant force = Volume of the object immersed in liquid × Density of the liquid × Acceleration due to gravity

    • This is the reason why an object immersed in water weighs comparatively lesser than its weight when it is outside water.


  • Archimedes’ principle

    • Upward force experienced by a body immersed in fluid = Weight of the displaced fluid

    • Lactometer measures purity of milk

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