The quantity which decides the nature of the flow of a viscous liquid through a pipe is known as
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Solution
The quantity which decides the nature of the flow of a viscous liquid through a pipe is known as Reynold's Number.
Reynold's Numberis the ratio of inertial forces to viscous forces. It is a dimensionless quantity.
The value of Reynold's Number decides the nature of the flow. A higher number suggests turbulent flow and a lower Reynold's number suggests Laminar flow
Hence, Reynold's Numberdecides the nature of the flow of a viscous liquid through a pipe.