Can we explain mathematically like this?
Efflex velocity (v) prop sqrt(y)
v = k * sqrt(y)
dVol/dt = dy/dt * PI * x^2 = Area of hole * velocity(v) ............. (.'.Continuity equation of flow)
It is given that rate of descension is independent of the level of liquid in the jar
ie. dy/dt = Constant =k1
So dVol/dt = k1 * PI * x^2 = k * Area of hole * sqrt(y)
So K x^2 = sqrt(y) squaring both sides
y = K * x^4
Rate me if it is correct