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Examples of laminar (low Reynolds number) flow Identify which of the following are classic examples of laminar flow regimes. Choose the correct option.

Difficulty: Easy

Under ground flow
Flow past tiny bodies
Flow of oil in measuring instruments
all of these

Correct Answer: all of these

Explanation:

Concept/Approach
Laminar flow occurs at low Reynolds numbers where viscous forces dominate. Porous-media groundwater flow (Darcy's law), creeping flow around tiny particles, and instrument oil flow are standard laminar cases.

Final Answer
all of these

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