Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a fluid flowing through a pipe with varying heights and velocities. Which equation represents the relationship between pressure difference, kinetic energy, and gravitational potential energy in fluid flow?
A
P1 - P2 = 1/2 ρ (v2^2 - v1^2) + ρg (h2 - h1)
B
P1 + P2 = 1/2 ρ (v1^2 + v2^2) - ρg (h1 + h2)
C
P1 * P2 = ρg (h1 - h2) - 1/2 ρ (v2^2 + v1^2)
D
P1 - P2 = ρg (h1 - h2) - 1/2 ρ (v1^2 - v2^2)
Correct Answer
Option A
Detailed Explanation
The correct equation is derived from the work-energy theorem applied to fluid flow, as stated in the NCERT context: (P1 - P2) = 1/2 ρ (v2^2 - v1^2) + ρg (h2 - h1).
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