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Physics · PYQ NEET UG 2026
हिन्दीWater flows in a streamline motion through a horizontal pipe of circular cross-section as shown in the figure. The pressure difference of water between \( P \) and \( Q \) is \( 15 \text{ Nm}^{-2} \). The area of cross-section at \( P \) and \( Q \) are \( 40 \text{ cm}^2 \) and \( 20 \text{ cm}^2 \), respectively. The rate of flow of water through the pipe, in \( ext{cm}^3\text{s}^{-1} \), is : [Take density of water \( = 1000 \text{ kg m}^{-3} \)]
Correct answer · Option 2
\( 200 \)
Explanation
Using Bernoulli's equation and equation of continuity \( A_1 v_1 = A_2 v_2 \), the rate of flow can be calculated as \( 200 \text{ cm}^3\text{s}^{-1} \).
