Question

The Flow Rate From A Tap Of Diameter 1.25Cm Is 3Lit/Min. The Coefficient Of Viscosity Of Water Is 10-3 Pas. The Nature Of Flow Is ______.

Answer 1

Answer:

Explanation:

Here, diameter of the tap,

D=1.25cm=1.25×10

−2

m

Density of water, ρ=10

3

kgm

−3

Coefficient of viscosity,η=10

−3

Pas

Volume of water flowing out per second is

Q=3Lpermin=

60s

3×10

−3

m

3

​

=5×10

−5

m

3

s

−1

Reynolds number is given by:

R

e

​

=

πDη

4ρQ

​

=

3.14×1.25×10

−2

m×10

−3

Pas

4×10

3

kgm

−3

×5×10

−5

m

3

s

−1

​

=5095>2000

Thus, the flow will be turbulent.