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प्रश्न
Select the correct option.
One Pascal is equal to
विकल्प
Nm1
Nm−2
Nm2
Nm−1
उत्तर
Nm−2
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संबंधित प्रश्न
Define one pascal (Pa), the S.I. unit of pressure.
State Pascal's law of transmission of pressure.
Name two applications of Pascal's law.
In a hydraulic machine, a force of 2 N is applied on the piston of area of cross section 10 cm2. What force is obtained on its piston of area of cross section 100 cm2 ?
What should be the ratio of area of cross section of the master cylinder and wheel cylinder of a hydraulic brake so that a force of 15 N can be obtained at each of its brake shoe by exerting a force of 0.5 N on the pedal ?
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.
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.
State the principle on which Brahma press depends.
Match the following:
| 1. | Hydraulic press | a. | Archimedes |
| 2. | Cartesian Diver | b. | Floatation |
| 3. | Hydrostatic Balance | c. | Pascal’s law |
| 4. | Hydrometer | d. | Buoyancy |
