MCQ
Reynold's number (Re) can be defined as:
  • A
    $\frac{\rho\eta}{\text{vd}}$
  • B
    $\frac{\text{vd}}{\rho}$
  • C
    $\frac{\rho\text{vd}}{\eta\text{d}}$
  • D
    $\text{d}\rho\frac{\text{v}}{\eta}$

Answer

  1. $\text{d}\rho\frac{\text{v}}{\eta}$

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