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Give scientific reason:When the piston of a syringe is released, it is immediately pushed in. |
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Answer» 1. On pulling the piston of a syringe with the inlet hole of the syringe closed, more space becomes available to the air in the syringe, and it becomes rarified. 2. As a result, the pressure of the air in the syringe is lowered. 3. Comparatively the pressure of the outside air is very high. So when the pulled out piston is A released, it is immediately pushed in. |
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