Which of the following expressions gives the speed of water emerging from a small…

PHYSICS · Single correct · CBSE · Physics · Mechanical Properties of Fluids · Mechanical Properties of Fluids

Problem

Which of the following expressions gives the speed

v

of water emerging from a small hole located a vertical distance

h

below the free surface of an open tank (assume the water is incompressible and viscosity is negligible)? (a)

\sqrt{\dfrac{gh}{2}}

(b)

\sqrt{2gh}

(c)

\sqrt{gh}

(d)

\sqrt{4gh}