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Question 6498
NEET Physics · Hard

Mechanical Properties of Fluids: Surface Tension MCQ

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

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Surface TensionHardQuestion 6498

Question

Energy required to blow a soap bubble of radius R (surface tension T):
  1. A
    4πR²T
  2. B
    8πR²T
    Correct
  3. C
    2πR²T
  4. D
    16πR²T

Correct answer

8πR²T

Explanation

Soap bubble has 2 surfaces. Energy = T × total area = T × 2 × 4πR² = 8πR²T.

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