Q.

Which one of the follflowing is correct?

A. the frictional resistance is always dependent on the nature of the surface area of contact
B. the frictional resistance is always independent of the nature of the surface area of contact
C. the frictional resistance is dependent on the nature of the surface area of contact when the liquid flows at a velocity less than the critical velocity
D. the frictional resistance is independent of the nature of the surface area of contact when the liquid flows at a velocity less than the critical velocity View Answer
Answer» D. the frictional resistance is independent of the nature of the surface area of contact when the liquid flows at a velocity less than the critical velocity View Answer
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