with the help of an experiment show the structure and working of a pressure detector
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Experiment - To show air occupies space
Procedure - A glass bowl is half filled with water. An empty glass tumbler is inverted inside the bowl.
When the tumbler is tilted, bubbles are seen in water.
Observation - The air was occupying space inside the tumbler, and on tilting air is displaced and bubbles come out because of that.
Conclusion - Air occupies space.
(b) Experiment - To show air has mass
Procedure - An inflated balloon is placed on one side of a simple scale, and the scale tilts towards one side.
Observation - The balloon has mass which makes the scale tilt.
Conclusion - Air has mass.
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