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Question

Which of the following barometer can be used as an altimeter?


A

Simple barometer

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B

Fortin’s barometer

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C

Aneroid barometer

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D

Both A and B

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Solution

The correct option is C

Aneroid barometer


An altimeter is a device used in aircraft to measure its altitude. An aneroid barometer which has its scale calibrated in terms of height of ascent can be used as an altimeter. Since atmospheric pressure decreases with the increase in height above the sea level, therefore a barometer measuring the atmospheric pressure is used to determine the altitude.


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