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प्रश्न
Define one pascal (Pa), the S.I. unit of pressure.
उत्तर
One pascal is the pressure exerted on a surface of area 1 m2 by a force of 1N acting normally on it.
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संबंधित प्रश्न
Name two applications of Pascal's law.
The areas of pistons in a hydraulic machine are 5 cm2 and 625 cm2. What force on the smaller piston will support a load of 1250 N on the larger piston? State any assumption which you make in your calculation.
What force is applied on a piston of area of cross section 2 cm2 to obtain a force 150 N on the piston of area of cross section 12 cm2 in a hydraulic machine?
Select the correct option.
The pressure exerted by 50 kg (g = 10 m/s−2) on an area of cross-section of 2 m2 is
At a given place, a barometer records 70 cm of Hg. If the mercury in the barometer is replaced by water, what would be resulting in reading? (Density of Hg = 13600 kg/m3; Density of water = 1000 kg/m3)
State Pascal's law.
State two applications of Pascal's law.
