The only possible dimensionless group which combines velocity V, body size L, fluid density r, and surface tension coefficient σ is

Engineering

Physics

Physical Quantities

Dimensions

Surface Tension and Surface Energy

Question

The only possible dimensionless group which combines velocity V, body size L, fluid density r, and surface tension coefficient σ is

ρLV² / σ

ρVL² / σ

σLV² / ρ

ρσV² / L

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$\frac{{ML}^{- 3} {LT}^{- 1} L^{2}}{{MT}^{- 2}}$

$\frac{{ML}^{- 3} \times {MT}^{2} \times L^{2} T^{- 2}}{L}$

$\frac{{ML}^{- 2} \times L \times L^{2} T^{- 2}}{{ML}^{3}}$