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A small liquid drop of radius R is divided into 27 identical liquid drops. If the surface tension is T , then the work done in the process will be :

1. T R 8 1 2 π
2. 8 π R 2 T
3. 4 π R 2 T
4. 3 π R 2 T

Correct answer: 8 π R 2 T

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