First slide

Fluid dynamics

Question

Along a streamline,

Easy

A

the velocity of a fluid particle remains constant
B

the velocity of all fluid particles crossing a given position is constant
C

the velocity of all fluid particles at a given instant is constant
D

the speed of a fluid particle remains constant

Solution

As we know for a streamline flow of a liquid velocity of each particle at a particular cross-section is constant, because $Av = constant$ (law of continuity) between two cross-section of a tube of flow.

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