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According to Bernoulli's theorem, P + 1/2 ρ v² = constant and A = constant. If A is minimum, v is maximum, P is minimum.

1. P + 1/2 ρ v² = constant
2. A = constant
3. If A is minimum, v is maximum
4. P is minimum

Correct answer: P is minimum

Solution

According to Bernoulli's theorem, when the cross-sectional area (A) of a fluid flow decreases, the velocity (v) increases to maintain continuity, and the pressure (P) decreases to conserve energy. Thus, P is minimum when A is minimum.

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