give any one activity ro justify that air also exist pressure. the lesson of force and pressure. CBSE syllabus.
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air also exerts pressure
take a bottle and make four holes in it one below the other . Pour water and close the cap tightly .Now, open the cap , water from the first hole falls next to the bottle and the second will fall with some gap to the bottle and the third to its next and same with the fourth hole . this shows that air exerts pressure downwards
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