With what terminal velocity will an air bubble of radius 0.2 mm. rise in a liquid of viscosity `0.15 Nsm^(-2)` and specific gravity 0.9 ? Density of air` 1.3 kg m^(-3)`

Explanation

To find the terminal velocity of an air bubble rising in a liquid, we can use the formula for terminal velocity \( v_t \):

\[ v_t = \frac{2}{9} \cdot \frac{(\rho - \sigma)}{\mu} \cdot r^2 \cdot g \]

Where:
- \( \rho \) = density of the fluid (in kg/m³)
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