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प्रश्न
Name three applications of Pascal's law.
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उत्तर
Hydraulic machines such as hydraulic press, hydraulic brakes, and hydraulic jacks are applications of pascal's law.
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संबंधित प्रश्न
Name and state the principle on which a hydraulic press works. Write one use of hydraulic press.
Draw a simple diagram of a hydraulic jack and explain its working.
A force of 50 kgf is applied to the smaller piston of a hydraulic machine. Neglecting friction, find the force exerted on the large piston, if the diameters of the pistons are 5 cm and 25 cm respectively.
Select the correct option.
A dam for water reservoir is built thicker at the bottom than at the top because
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)
P is the pressure at some point in a liquid. State whether pressure P is a scalar or vector quantity.
The density of iron is 7800 kg m-3. What do you mean by this statement? What is density of water at 40C?
A hydraulic press can lift 100 kg when a mass 'm' is placed on the smaller piston. It can lift ______ kg when the diameter of the larger piston is increased by 4 times and that of the smaller piston is decreased by 4 times keeping the same mass 'm' on the smaller piston.
