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NEET 2015 (AIPMT) · Velocity of Efflux (Torricelli)

Velocity of Efflux (Torricelli) question from NEET 2015 (AIPMT)

Q26NEET 2015 · AIPMTMedium

Velocity of Efflux (Torricelli)

The cylindrical tube of a spray pump has radius R, one end of which has n fine holes, each of radius r. If the speed of the liquid in the tube is V, the speed of the ejection of the liquid through the holes is

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Answer: (d)

Continuity: $\pi R^2 V = n\pi r^2 v$
$v = \frac{VR^2}{nr^2}$
So the answer is (d) $\frac{VR^2}{nr^2}$ .

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