STANDARD Physics Surface Tension MCQ Question
A soap bubble formed at the end of the tube is blown very slowly. The graph between excess off pressure inside the bubble with time is
P vs t (linear increase)
P vs t (exponential decay)
P vs t (sigmoidal curve)
P vs t (constant)
Correct Answer
Detailed Explanation
As the bubble is blown slowly, the pressure inside initially increases and then stabilizes as the bubble reaches equilibrium. The graph representing this behavior is an exponential decay.
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