Question

Explain why, when we try to close a water tap with our fingers, fast jets of water gush through the openings between our fingers.

Answer 1

Hey mate,

◆ Equation of continuity-
It states that velocity of fluid flow is inversely proportional to area of the opening.
Area × Velocity = constant

Here,
When we try to close the tap with fingers, the area of the opening decreases to just between gaps between fingers.
As area decreases, velocity of water flow increases and it gushes out through small gaps between fingers.

Hope that is helpful...