Pressure Due to Fluids

A dam of the water reservoir is built thinner at the bottom.

What is the use of a manometer? Mention different types also.

Explain the working of manometer.

The pressure exerted by water is more than air. Give reason.

Give two reasons for the use of mercury as a barometric liquid.

List the disadvantages of using water as a barometric liquid?

A barometer is an instrument used for measuring the force exerted by the atmosphere.

The atmospheric pressure supports approximately _____ $\mathrm{mm}$ ($760/860$) of a mercury column.