Environmental Sciences, asked by sonavanekaplana, 6 hours ago

the pull-out piston of a sizing is released gets immediately post inside​

Answers

Answered by santoshprasad643423
1

Explanation:

while pulling the piston,pressure inside the syringe decreases as compared to the atmospheric pressure,actually,its tube is empty. hence when there is liquid on the outside of the needle, it gets pulled into the empty space by the vacuum.

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