M

Mr. Dubey • 52.61K Points
Coach 

Q. How is Reynolds number defined as?

(A) ratio of pressures in the inlet to the outlet of a pipe
(B) the product of velocity of the flow and the diameter of the pipe, divided by the kinematic viscosity of fluid
(C) the product of density of the fluid, velocity of the flow and the diameter of the pipe, divided by the dynamic viscosity of fluid
(D) ratio of inertia force to viscous force
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Explanation by: Mr. Dubey 
 the question demands the definition and not the commonly used formula of reynolds number. some of them denote the formula of reynolds number. the definition of reynolds number is the ratio of inertia force to viscous force in a pipe flow.

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