What is an altimeter?How is barometer used as an altimeter.
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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.
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Answer:
An altimeter is an instrument used to measure the height of a place.
Where mercury in barometer falls means high altitude and vice-versa.
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