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Give reason for the following:Water does not run out of a dropper unless its rubber bulb is pressed. - Physics

Answer in Brief

Give reason for the following:
Water does not run out of a dropper unless its rubber bulb is pressed.

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Solution

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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APPEARS IN

Selina Concise Physics Class 8 ICSE
Chapter 3 Force and Pressure
Short/Long Answer Questions | Q 40.2 | Page 58
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