1.

What are the dimensions of Reynolds number ?

Answer» `R = (rhov_(0)D)/(eta)`
`(rho` is density of the fluid `v_(0)` is the critical velocity, D is diameter through which the fluid is flowing and `eta` is the coefficient of viscosity of the fluid)
`R([ML^(-3)][LT^(-1)][L])/([ML^(-1)T^(-1)])=[(ML^(-1)T^(-1))/(ML^(-1)T^(-1))]=[M^(0)L^(0)T^(0)]`
`:. R` is dimensionless.


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