Question

An incompressible liquid flows through a unifonn cross sectional tube with velocity 20 cm/s. If the thickness of liquid layer is 0.8 cm then velocity of gradient of flow is ____________.

Options

• 15 s^-1

• 12 s^-1

• 18 s^-1

• 25 s^-1

Answer 1

An incompressible liquid flows through a unifonn cross sectional tube with velocity 20 cm/s. If the thickness of liquid layer is 0.8 cm then velocity of gradient of flow is 25 s^-1.

Explanation:

`"dv"/"dx" =20/0.8 = 25//"s"`