Write about the structure and working method of a mercury barometer briefly ?
Answers
Answer:
: A Torricellian barometer (sometimes called a mercury barometer) is an inverted (upside-down) glass tube standing in a bath of mercury. Air pressure pushes down on the surface of the mercury, making some rise up the tube. The greater the air pressure, the higher the mercury rises.
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Answer:
Is it going to rain today? Is it going to stay fine? And how can you tell? One easy way is to measure the air pressure. If it's rising and the pressure is high, chances are it'll be a fine day; if the pressure is falling, it's more likely to be wet, windy, and dull. Instruments that measure air pressure are called barometers and people have been using them for weather forecasting and scientific research for hundreds of years. Let's take a closer look at how they work!