Water flows through a hose with a velocity of 2 m/s. If the hose's cross-sectional area is halved, what is the new velocity?
Q1. Water flows through a hose with a velocity of 2 m/s. If the hose's cross-sectional area is halved, what is the new velocity?
Answer: 4 m/s
Explanation: By the equation of continuity, velocity doubles when area is halved. Option A is incorrect because it violates this principle.