Start Free Mock LoginAlready registered? Login here

Physics - Fluid Question with Solution | TestHub

PhysicsFluidBernoulli's theorem and applicationsMedium3 minQB

PhysicsMediumsingle choice

Passage / Comprehension

A container is filled with water as shown. A constant force $F$ is applied slowly to its piston to expel the water.
Water volume is $V$ , orifice cross-sectional area is $a$ , liquid density is $ρ$ , and cylinder cross-sectional area is $A$ .

What is the velocity of water which is coming out considering $A ≫ a$ ?

Options:

Answer:

Solution:

Since A≫a, the piston speed is negligible compared with the outlet speed. At equal height, Bernoulli gives:

$P_{0} + \frac{F}{A} = P_{0} + \frac{1}{2} ρ v^{2}$

$v = \frac{2 F}{A ρ} (D)$

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Bernoulli's theorem and applications

⏱ 3mℹ️ Source: QB

Doubts & Discussion

Loading discussions...