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Question

The Reynolds number for laminar flow is

A
More than 4000
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B
More than 2100
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C
Less than 2100
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D
Between 2100 and 4000
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Solution

The correct option is C Less than 2100

During laminar flow, the stream lines are equally spaced and are highly ordered. However during turbulent flow regime, the stream lines cross each other at several points.
Laminar flow occurs for Reynolds number ReN2100

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