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Physics · JEE | UNITS AND MEASUREMENT
हिन्दीIf energy \( E \), velocity \( v \), and time \( T \) are chosen as the fundamental units, the dimensional formula for surface tension is:
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Correct answer · Option C
\( [E v^{-2} T^{-2}] \)
Explanation
Surface tension \( S = [\text{MT}^{-2}] \). Expressing \( M, L, T \) in terms of \( E = [\text{ML}^2\text{T}^{-2}], v = [\text{LT}^{-1}], T = [\text{T}] \) yields \( S = [E v^{-2} T^{-2}] \).
