STANDARD Physics Surface Tension MCQ Question
The work done in blowing a soap bubble of surface tension 0.06 N m⁻¹ from 2 cm radius to 5 cm radius is
3.12 mJ
1.25 mJ
2.51 mJ
4.55 mJ
Correct Answer
Detailed Explanation
The work done is calculated using the formula for surface tension and change in surface area. The initial and final surface areas are calculated, and the difference is multiplied by the surface tension to find the work done.
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