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प्रश्न
Why does the liquid rise in a syringe when its piston is pulled up?
उत्तर
When syringe is kept with its opening just inside a liquid and its plunger is pulled up in the barrel, the pressure of air inside the barrel below the plunger becomes much less than the atmospheric pressure acting on the liquid. As a result, the atmospheric pressure forces the liquid to rise up in the syringe.
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संबंधित प्रश्न
Fill the missing word in the blank spaces in the following statements:
Air moves from a region of __________ pressure to a region of ________ pressure.
The atmospheric pressure on earth surface is nearly .............. .
How does the pressure at a certain depth in sea water differ from that at the same depth in river water? Explain your answer.
What do you understand by atmospheric pressure?
How is the reading of a barometer affected when it is taken to (i) a mine, and (ii) a hill?
Describe an experiment to demonstrate that air exerts pressure.
Air pressure is expressed in ______.
Define one atmosphere.
High pressure is called ______.
______ is used to show the distribution of air pressure.
