Mathematics · Mechanical Properties of Fluids
A water drop of radius 10-2 m is broken into 1000 equal droplets. If the surface tension of water is 0.075 N/m, the gain in surface energy will be:
- 18.5 × 10-4 J✓
- 28.1 × 10-4 J
- 37.7 × 10-4 J
- 47.5 × 10-4 J
Correct answer
8.5 × 10-4 J
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