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Fluid Mechanics — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsFluid Mechanics1 Mark
Question
Assertion : The velocity increases, when water flowing in broader pipe enter a narrow pipe.
Reason $\quad$ : According to equation of continuity, product of area and velocity is constant.
✓

Answer

(a) In a stream line flow of a liquid, according to equation ofcontinuity(av=$constant.Where $a$ is the area of cross section and $v$ is the velocity of liquid flow. Whenwaterflowing in a broader pipe enters a narrow pipe, the area of crosssection of water decreases therefore the velocity of water increases.

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