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Which one of the following laws is applicable to a hydraulic lift?
  • a)
    Kirchhoff's law
  • b)
    Pascal's Law
  • c)
    Archimedes’ principle
  • d)
    Archimedes' Law
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which one of the following laws is applicable to a hydraulic lift?a)Ki...
The correct answer is Pascal's law.
  • The Pascal's law states that in a fluid which is at rest in a container, the pressure applied to one part of the fluid is uniformly transmitted to all the parts of the fluid.
Key Points
  • A hydraulic lift employs this principle to lift heavy objects.
  • When pressure is applied to a fluid through one piston, it results in an equivalent pressure on another piston in the system which is then able to lift objects.
  • With the increase in the area of the second piston, the force exerted by it also increases thus enabling lifting of heavier objects.
Additional Information
  • Hooke's law states that force needed to extend or compress a spring by some distance is directly proportional to that distance.
  • Newton's first law of motion - A body at rest remains at rest, or if in motion, remains in motion at constant velocity unless acted on by a net external force. 
  • Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces.
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Which one of the following laws is applicable to a hydraulic lift?a)Kirchhoffs lawb)Pascals Lawc)Archimedes’ principled)Archimedes LawCorrect answer is option 'B'. Can you explain this answer?
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