State the reason why water gets filled in the dropper when we press the bulb of a before placing its nozzle in water.
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When we press the bulb of a dropper with its nozzle kept in water, the air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to. ... Atmospheric pressure.
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