General Science • PhysicsMedium
What happens to the pressure inside a soap bubble when its radius is decreased?
A. It decreases
B. It increases✓ Correct Answer
C. It remains constant
D. It drops to zero
💡 Solution & Explanation
Internal pressure inside a soap bubble is inversely proportional to its radius according to the excess pressure formula, meaning a smaller radius generates higher compressive forces. Alternative choices fail because reducing the curvature magnifies surface tension effects rather than diminishing them.
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