Question

A___ is used to measure the atmospheric pressure.

• A. multimeter
• B. barometer
• C. manometer
• D. lactometer

Answer 1

The correct option is B

barometer

A mercury barometer has a section of mercury exposed to the atmosphere. The atmosphere pushes the mercury down. If there is an increase in pressure, it forces the mercury to rise inside the glass tube and a higher measurement is shown. If atmospheric pressure decreases, downward force on the mercury decreases and the height of the mercury inside the tube as a result decreases.