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JEE Main · 2023 · 06 Apr 2023 · Shift 2 · Fluid Mechanics

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Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: When you squeeze one end of a tube to get toothpaste out from the other end, Pascal's principle is observed.
Reason R: A change in the pressure applied to an enclosed incompressible fluid is transmitted undiminished to every portion of the fluid and to the walls of its container.

In the light of the above statements, choose the most appropriate answer from the options given below
  1. (A) is not correct but is correct
  2. (B) is correct but is not correct
  3. (C)Both and are correct and R is the correct explanation of ✓ Correct
  4. (D)Both and are correct but is NOT the correct explanation of

Answer: (C)

Solution

Squeezing one end of the tube raises the pressure of the enclosed toothpaste, and this increase is transmitted undiminished through the incompressible fluid to every part of it, pushing the paste out of the open end. This is precisely Pascal's principle, which Reason R states. Both the assertion and the reason are correct, and the reason is the correct explanation of the assertion.

JEE Main · 2023 · 06 Apr 2023 · Shift 2 · Single correct option

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