Fluid pressure, Pascal's law and applications
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See all →- A U tube with both ends open to the atmosphere, is partially filled with water. Oil, which is immiscible with water, is poured into one side until it stands at a distance of 10 mm above the water level on the other side. Meanwhile the water rises by… Answer: 3. 928 kg m ⁻³ Key idea: pressure at the same level in the same liquid is equal. Take points B (oil-water interface, left) and C (sa... 1
- Two non-mixing liquids of densities ρ and nρ (n > 1) are put in a container. The height of each liquid is h. A solid cylinder of length L and density d is put in this container. The cylinder floats with its axis vertical and length pL (p < 1) in the… Answer: 4. \1+(n-1)p\ρ Key idea: weight of cylinder equals total buoyant force. Length pL is in the denser liquid ( nρ ); remaining (1-p)L i... 1