NEETPhysics-Fluid Mechanics
NEET Physics Equation of Continuity MCQ Question
Type: MCQ-conceptual-Medium
The cylindrical tube of a spray pump has a cross-section of 8 cm², one end of which has 40 fine holes each of area 10⁻⁸ m². If the liquid flows inside the tube with a speed of 0.15 m min⁻¹, the speed with which the liquid is ejected through the holes is:
A
50 ms⁻¹
B
5 ms⁻¹
C
0.65 ms⁻¹
D
0.5 ms⁻¹
Correct Answer
Option A
Detailed Explanation
Using the equation of continuity, A₁v₁ = A₂v₂, where A₁ and v₁ are the area and velocity of the liquid in the tube, and A₂ and v₂ are the area and velocity of the liquid through the holes. Solving gives v₂ = 50 ms⁻¹.
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