MCQ
How much work is required to making a soap bubble solution whose radius is r?
- A$4 \pi r^2 T$
- ✓$8 \pi r^2 T$
- C$2 \pi r^2 T$
- D$\pi r^2 T$
✓
Answer
Correct option: B.
$8 \pi r^2 T$
B
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