JEE Physics · Hard

Fluid Mechanics: Pressure Advanced MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Pressure AdvancedHardQuestion 30994

Question

The compressibility of an ideal gas at constant temperature (isothermal) is:
  1. A
    1/P
    Correct
  2. B
    P
  3. C
    1/(γP)
  4. D
    γP

Correct answer

1/P

Explanation

Isothermal bulk modulus = P. Compressibility = 1/B = 1/P. (Compare adiabatic compressibility = 1/(γP).)