Ncert Exercises & Solutions

Along a streamline,

1.	the velocity of a fluid particle remains constant.
2.	the velocity of all fluid particles crossing a given position is constant.
3.	the velocity of all fluid particles at a given instant is constant.
4.	the speed of a fluid particle remains constant.

(b)

Hint: Apply the concept of the equation of continuity.

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

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