Give the use of the following.
a) Mano meter b) barometer
Answers
Answer:
BAROMETER - DEFINITION
It is an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.
MANOMETER - DEFINITION
An instrument for measuring the pressure acting on a column of fluid, consisting of a U-shaped tube of liquid in which a difference in the pressures acting in the two arms of the tube causes the liquid to reach different heights in the two arms.
WHAT IS BAROMETER? - DEFINITION
Barometer - Is it going to rain today? Is it going to stay fine? How can you tell about the weather behaviour?
One easy way is to measure air pressure and predict weather it will rain today or not.
1. If the air pressure is rising and its high then chances are it'll be a fine day.
2. If the pressure is falling, it's more likely to be wet, windy and dull.
The instruments that measure air pressure are called Barometers.
People have been using barometers for weather forecasting and research purposes.
PRINCIPLE OF MANOMETER AND EXAMPLE - EXAMPLE
A manometer is an instrument that uses a column of liquid to measure pressure
Example: The reading of a manometer fitted to a closed tap is 3.5 x 10
5
Nm
2
. If the valve is opened the reading of the manometer falls to
3 x 10
5
Nm
2
. What is the velocity of water?
Answer:
mamo meter-
Explanation:
An instrument for measuring the pressure acting on a column of fluid, consisting of a U-shaped tube of liquid in which a difference in the pressures acting in the two arms of the tube causes the liquid to reach different heights in the two arms.
barometer-
An inverted glass tube is standing in the bath of mercury and air pressure is exerted on the surface of mercury. The pressure at the top of the mercury column is zero as there is a vacuum there. Due to atmospheric pressure we can see some raise in glass tube. The height raised in glass tube is equivalent to the atmospheric pressure.
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