Physics · 2025
JEE Main · 2 April 2025, Shift 2 · Q31
Two water drops each of radius ' r ' coalesce to form a bigger drop. If ' T ' is the surface tension, the surface energy released in this process is:
Two water drops each of radius ' r ' coalesce to form a bigger drop. If ' T ' is the surface tension, the surface energy released in this process is :
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 4 \pi \mathrm{r}^2 \mathrm{~T}\left[2-2^{2 / 3}\right]$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.