Q. Who invented mercury barometer?
Answer: Evangelista Torricelli
Notes: Evangelista Torricelli devised for the first time a method for measuring atmospheric pressure. A long glass tube closed at one end and filled with mercury is inverted into a trough of mercury. This device is known as ‘mercury barometer’.

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📌 Question Number: 10 in Physics GK 09 - Pressure in the above course in App.