Oil flows through a horizontal pipe that narrows from an upstream diameter of to a…

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

Problem

Oil flows through a horizontal pipe that narrows from an upstream diameter of

2.5\,\text{cm}

to a downstream diameter of

10\,\text{mm}

. If the speed of the oil in the downstream section is

6.0\,\text{m}\!/\!\text{s}

, what is its speed in the upstream section? (a)

1.5\,\text{m}\!/\!\text{s}

(b)

15\,\text{m}\!/\!\text{s}

(c)

0.96\,\text{m}\!/\!\text{s}

(d)

2.4\,\text{m}\!/\!\text{s}