JEE Mains · Physics · STD 11 - 9.1 fluid mechanics
If \(\rho\) is the density and \(\eta\) is coefficient of viscosity of fluid which flows with a speed \(v\) in the pipe of diameter \(d\), the correct formula for Reynolds number \(R _{ e }\) is ..............
- A \(R _{ e }=\frac{\eta d}{\rho v}\)
- B \(R_{e}=\frac{\rho v}{\eta d}\)
- C \(R _{ e }=\frac{\rho vd }{\eta}\)
- D \(R _{ e }=\frac{\eta}{\rho vd }\)
Answer & Solution
Correct Answer
(C) \(R _{ e }=\frac{\rho vd }{\eta}\)
Step-by-step Solution
Detailed explanation
Reynold's number is given by \(\frac{\rho v d}{\eta}\)
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