Water does not run out of dropper unless the rubber- band is pressed? – InterviewSolution

1.	Water does not run out of dropper unless the rubber- band is pressed? Why
Answer» Atmospheric pressure acting from outside the dropper balances the pressure EXERTED by water and water does not come out of a dropper. On PRESSING the dropper INSIDE pressure of water becomes more than outside atmospheric pressure and water RUN out.

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