Section: Fluid Mechanics | Marks: 1
A projection manometer is to be used for measuring the dynamic pressure of an airstream ($\rho = 1.2\text{ kg/m}^3$). The least count of the manometer scale is $0.1\text{ mm}$. The manometric liquid is alcohol of specific gravity $0.8$. The lowest velocity that can be measured is (Take $g = 10\text{ m/s}^2$, $\rho_w = 1000\text{ kg/m}^3$)
- A. $\sqrt{3}/2\text{ m/s}$
- B. $2/\sqrt{3}\text{ m/s}$
- C. $\sqrt{3}\text{ m/s}$
- D. $2\text{ m/s}$