Barometer is used to measure ____________.
A device which is used to measure atmospheric pressure is known as Barometer. There are two types of barometers:- mercury and aneroid.
Atmospheric pressure is balanced by a column of mercury in case of a mercury barometer.
Aneroid barometer also called non-liquid barometer. Because of its smaller size and convenience, it is widely used in portable instruments and in aircraft altimeters.