Question

# Two soap bubbles have different radii but their surface tension is the same. Mark the correct statement

A
Internal pressure of the smaller bubble is higher than the internal pressure of the larger bubble
B
Pressure of the larger bubble is higher than the smaller bubble
C
Both bubbles have the same internal pressure
D
None of the above

Solution

## The correct option is B Internal pressure of the smaller bubble is higher than the internal pressure of the larger bubble$$\Delta P=\dfrac{4T}{R}\therefore \Delta P\propto \dfrac{1}{R}$$    ($$T$$ = constant)Hence, the internal pressure of smaller bubble is larger than that of larger bubble.Physics

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