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Barometer is used to measure
- a)pressure in pipes, channels etc.
- b)atmospheric pressure
- c)very low pressure
- d)difference of pressure between two points
- e)rain level
Correct answer is option 'B'. Can you explain this answer?
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Barometer is used to measurea)pressure in pipes, channels etc.b)atmosp...
Barometer and its use to measure atmospheric pressure
A barometer is a scientific instrument used to measure atmospheric pressure. It is an essential tool in meteorology and weather forecasting. The word barometer comes from the Greek words "baros" (meaning weight) and "metron" (meaning measure).
Principle of operation
A barometer works on the principle of hydrostatic pressure. It consists of a glass tube filled with mercury, which is inverted into a bowl of mercury. The pressure of the atmosphere on the surface of the mercury in the bowl forces the mercury up the tube.
Types of barometers
There are two main types of barometers: mercury barometers and aneroid barometers. Mercury barometers are the most accurate and widely used type of barometer. Aneroid barometers are less accurate but more portable and are often used in aviation.
Units of measurement
Atmospheric pressure is measured in units of millibars (mb) or inches of mercury (inHg). Standard atmospheric pressure at sea level is approximately 1013 mb or 29.92 inHg.
Applications
Barometers are used in weather forecasting, aviation, and scuba diving. By monitoring changes in atmospheric pressure, meteorologists can predict changes in weather patterns. In aviation, barometers are used to measure altitude. In scuba diving, barometers are used to monitor depth.
Conclusion
In conclusion, a barometer is an instrument used to measure atmospheric pressure. It works on the principle of hydrostatic pressure and is an essential tool in meteorology, weather forecasting, aviation, and scuba diving. The most common type of barometer is the mercury barometer, which is highly accurate and widely used.
A barometer is a scientific instrument used to measure atmospheric pressure. It is an essential tool in meteorology and weather forecasting. The word barometer comes from the Greek words "baros" (meaning weight) and "metron" (meaning measure).
Principle of operation
A barometer works on the principle of hydrostatic pressure. It consists of a glass tube filled with mercury, which is inverted into a bowl of mercury. The pressure of the atmosphere on the surface of the mercury in the bowl forces the mercury up the tube.
Types of barometers
There are two main types of barometers: mercury barometers and aneroid barometers. Mercury barometers are the most accurate and widely used type of barometer. Aneroid barometers are less accurate but more portable and are often used in aviation.
Units of measurement
Atmospheric pressure is measured in units of millibars (mb) or inches of mercury (inHg). Standard atmospheric pressure at sea level is approximately 1013 mb or 29.92 inHg.
Applications
Barometers are used in weather forecasting, aviation, and scuba diving. By monitoring changes in atmospheric pressure, meteorologists can predict changes in weather patterns. In aviation, barometers are used to measure altitude. In scuba diving, barometers are used to monitor depth.
Conclusion
In conclusion, a barometer is an instrument used to measure atmospheric pressure. It works on the principle of hydrostatic pressure and is an essential tool in meteorology, weather forecasting, aviation, and scuba diving. The most common type of barometer is the mercury barometer, which is highly accurate and widely used.
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Barometer is used to measurea)pressure in pipes, channels etc.b)atmospheric pressurec)very low pressured)difference of pressure between two pointse)rain levelCorrect answer is option 'B'. Can you explain this answer?
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