How an barometer Works as an altimeter to measure height??and what is altimeter ?
Please answer it urgent.


Dear Student,
Altitude can be determined based on the measurement of atmospheric pressure. The greater the altitude, the lower the pressure. When a barometer is supplied with a nonlinear calibration so as to indicate altitude, the instrument is called a pressure altimeter or barometric altimeter.
Altimeter is an instrument for determining altitude attained, especially a barometric or radar device fitted in an aircraft.

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