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NEET2022PhysicsMechanical Properties of FluidsActual

If a soap bubble expands, the pressure inside the bubble

Options

  1. Aincreases
  2. Bremains the same
  3. Cis equal to the atmospheric pressure
  4. Ddecreases

Correct answer

D. decreases

Step-by-step solution

A soap bubble has two liquid surfaces in contact with air, one inside the bubble and the other outside the bubble. For pressure, we can write: P i = P o + 4 T r , so as r increases, pressure inside the bubble decreases.

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