Question

e) What is an altimeter? State its principle​

Answer 1

Answer:

An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth under water.

Explanation:

Principles:An altimeter is a device used in aircraft to measure its altitude. Principle: Atmospheric pressure decreases with the increase in height above the sea level; therefore, a barometer measuring the atmospheric pressure can be used to determine the altitude of a place above the sea level.

Answer 2

Answer:

An altimeter is a device used in aircraft to measure its altitude. Principle: Atmospheric pressure decreases with the increase in height above the sea level; therefore, a barometer measuring the atmospheric pressure can be used to determine the altitude of a place above the sea level.

Explanation:

With an increase in the height above the sea level, the atmospheric pressure decreases. Thus, a barometer that measures the atmospheric pressure can be utilized in order to measure the altitude of a place above the sea level.