In S.I. system, the total energy of the free surface of a liquid drop is $2 \pi$ times the surface tension…

In S.I. system, the total energy of the free surface of a liquid drop is $2 \pi$ times the surface tension of the liquid. The diameter of the drop is __________ .
  1. $\sqrt{3} \mathrm{~m}$
  2. $\sqrt{2} \mathrm{~m}$
  3. $\sqrt{5} \mathrm{~m}$
  4. $\sqrt{7} \mathrm{~m}$

Solution

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Asked in: AP EAMCET 2017 (26 Apr Shift 2)

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