Two identical air bubbles are rising in water. If they were to coalesce to form a single air bubble, the combined air bubble would have

Engineering

Physics

Surface Tension

Question

Higher excess pressure and higher terminal speed

Lower excess pressure but higher terminal speed

Lower excess pressure and smaller terminal speed

Higher excess pressure but smaller terminal speed

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$r ↑\Rightarrow Dp = \frac{25}{r} ↓$

$v_{T} = \frac{2}{9} r^{2} g \frac{(p - σ)}{η} v_{T} ↑$

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