Question

Define altimeter? Explain briefly.

Answer 1

Answer:

An altimeter is a device that measures altitude—a location's distance above sea level. Most altimeters are barometric, meaning they measure altitude by calculating the location's air pressure. Air pressure decreases as altitude increases. ... They determine altitude by measuring air pressure

Explanation:

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Answer 2

Explanation :

An altimeter is an aneroid barometer, but it is used in an aircraft to measure its altitude. Since atmospheric pressure decreases with the increase in height above the sea level, therefore a barometer which measures the atmospheric pressure, can be used to determine the altitude of a place above the sea level. Its scale is calibrated in terms of height of ascent with height increasing towards left because the atmospheric pressure decreases with increase of height above the sea level.