Which amongst the following statement is incorrect? (a) A jet of air striking a plate placed per...

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Which amongst the following statement is incorrect?
(a) A jet of air striking a plate placed perpendicular to it is an example of turbulent flow.
(b) The carburetor of automobile has a venturi channel (nozzle) through which air flows with a high speed.
(c) Ball moving without spinning inside a fluid experiences a net upward force.
(d) None of the above
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