Question

Pick out the wrong statement.

a.

Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces.

b.

A hydrometer used for the determination of specific gravities of liquids works on the principle of buoyant forces.

c.

In case of unsteady fluid flow, the velocity at any given point does not change with time.

d.

Turbulent fluid flow is characterised by the rapid fluctuation of instantaneous pressure & velocity at a point.

Answer: (c).In case of unsteady fluid flow, the velocity at any given point does not change with time.

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Q. Pick out the wrong statement.

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