# Collapsing Bubble

A conducting bubble of radius $$a$$, thickness $$t (t<<a)$$ has potential $$V$$. Now the bubble collapses into a droplet.

The potential of the droplet $$V'$$ can be given by:

$$V' = V {\left ( \frac{a}{mt} \right )}^{\frac{1}{n}}$$, where $$m$$ and $$n$$ are integers.

Find the value of $$m - 2n$$.

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