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प्रश्न
Name the instrument used to measure atmospheric pressure.
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उत्तर
Barometer is used for measuring the atmospheric pressure.
संबंधित प्रश्न
State two experiences that made you think that air exerts pressure.
Name the physical quantity which is expressed in the unit 'atm'. State its value in pascal.
Explain how is the height of mercury column in tube of a simple barometer, a measure of the atmospheric pressure.
How is the barometric height of a simple barometer affected if Its tube is slightly tilted from vertical?
State two uses of a barometer.
Draw a simple labelled diagram of a Fortin barometer and state how it is used to measure the atmospheric pressure.
How is the reading of a barometer affected when it is taken to (i) a mine, and (ii) a hill?
How does the atmospheric pressure change with altitude? Draw an approximate graph to show this variation.
What is an altimeter? State its principle. How is its scale calibrated?
What do the following indicate in a barometer regarding weather : Gradual rise in the mercury level?
The unit torr is related to the barometric height as :
Briefly state the variations in the vertical distribution of pressure.
The radius of the press plunger and pump plunger are in ratio of 50 : 4. If an effort of 20 kgf acts on the pump plunger, calculate the maximum effort which the press plunger can over come.
State briefly, how and why the atmospheric pressure of a place varies with the altitude. Draw an approximate graph to illustrate this variation.
How is the reading of a barometer affected when it is taken to: A mine
What is meant by atmospheric pressure?
Humans are sensitive even to a small variations in pressure.
What is referred to as atmospheric pressure?
