When a stopper is pulled from a filled wash basin, the water drians out while circulating like a small whirl pool. The angular velocity of a fluid element about a vertical axis through the orifice appears to be greater near the orifice. The angular velocity of fluid element varies.

When a stopper is pulled from a filled wash basin, the water drians ou

1.	When a stopper is pulled from a filled wash basin, the water drians out while circulating like a small whirl pool. The angular velocity of a fluid element about a vertical axis through the orifice appears to be greater near the orifice. The angular velocity of fluid element varies.
Answer» inversely as the square of its DISTANCE from the AXIS through the ORIFICE. inversely as the distance from the axis through the orifice. DIRECTLY as the square of its distance from the axis through the orifice directly as the distance from the axis through the orifice. Answer :A