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प्रश्न
Explain the following :
A balloon collapses when air is removed from it.
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उत्तर
When air is removed from the balloon, the pressure inside the balloon (which was due to air in it) is much less than the atmospheric pressure outside and hence the balloon collapses.
संबंधित प्रश्न
State two experiences that made you think that air exerts pressure.
Explain how is the height of mercury column in tube of a simple barometer, a measure of the atmospheric pressure.
State two uses of a barometer.
Give two reasons for use of mercury as a barometric liquid.
Give reasons for the following:
As we go higher, the atmospheric pressure decreases.
Give reasons for the following:
Temperature and pressure are inversely related to one another.
At higher altitudes, air becomes ______
Clouds float in atmosphere because of their low ______.
What is meant by atmospheric pressure?
