Mechanical Properties of Fluids

Question: When two soap bubbles of radius ${{r}_{1}}$and ${{r}_{2}}$ $({{r}_{2}}>{{r}_{1}})$ coalesce, the radius of curvature of common surface is

1) ${{r}_{2}}-{{r}_{1}}$

2) $\frac{{{r}_{2}}-{{r}_{1}}}{{{r}_{1}}{{r}_{2}}}$

3) $\frac{{{r}_{1}}{{r}_{2}}}{{{r}_{2}}-{{r}_{1}}}$

4) ${{r}_{2}}+{{r}_{1}}$

Solution:

Explanation: No Explanation

Surface Tension Excess Pressure

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