If the flow is stream lined then Reynold number is less than:

2000

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3000

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1000

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4000

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Solution

The correct option is A $2000$
The Reynolds number is an experimental number used in fluid flow to predict the flow velocity at which turbulence will occur.
It is expressed as-

$v_{c r i t i c a l} = \frac{R η}{2 ρ r}$

where $R$ is the critical Reynolds number= $2000$
Above this value, turbulent flow takes place.

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If the flow is stream lined then Reynold number is less than:

The correct option is A 2000The Reynolds number is an experimental number used in fluid flow to predict the flow velocity at which turbulence will occur.It is expressed as-vcritical=Rη2ρrwhere R is the critical Reynolds number=2000Above this value, turbulent flow takes place.