Question

write two advantage of fountain barometer.​

Answer 1

Explanation:

The advantages of this type of barometer are its portability (inverted), and that it permits the inspection of both free surfaces of mercury whose difference in level have to be measured. The major disadvantage is the cistern and the mercury it contains require frequent cleaning to maintain the instrument's accuracy.

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Answer 2

F-o-r-t-i-n's barometer is widely used in laboratories and in meteorological departments. Main advantage of F-o-r-t-i-n's barometer is it is portable and it allows the mercury level in the cistern to be set to zero. this makes the reading move accurate.