Question

Question 3 [3+3+4]
(a) Explain working of manometer.
(b) Write three applications of atmospheric pressure.
(c) In a swimming pool of width 9m and length 24m, a person exert a force of 21600N by his
body at its bottom due to water. Find the pressure exerted by the water at the bottom of
the pool.

Answer 1

Answer:

A manometer works on the principle of hydrostatic equilibrium and is used for measuring the pressure (static pressure) exerted by a still liquid or gas. Hydrostatic equilibrium states that the pressure at any point in a fluid at rest is equal, and its value is just the weight of the overlying fluid.