Question

In a laminar flow between two static parallel plates, the velocity at mid-point is found to be 2.0 m/s. If the space between the plates is 10 cm, then the discharge per unit width $\left({inm}^3\text{/}s/m\right)$ will be

• A. 0.01
• B. 0.02
• C. 0.10
• D. 0.20

Answer 1

The correct option is C 0.10

The average velocity

$=\frac{2}{3}\times 2=\frac{4}{3}\text{m/s}$

The discharge per unit width

$=\frac{4}{3}\times 0.1=0.13{\text{m}}^3\text{/s/m}$