Question

When the plunger of a syringe is pulled the air pressure inside the syringe gets reduced . Why

Answer 1

Answer:

Cover the tip with a finger. Slowly pull on the plunger. Notice that as you pull on the plunger, it pulls back in the opposite direction. When you pull, the pressure inside the syringe is reduced below atmospheric pressure (the air outside the syringe)

Explanation:

Cover the tip with a finger. Slowly pull on the plunger. Notice that as you pull on the plunger, it pulls back in the opposite direction. When you pull, the pressure inside the syringe is reduced below atmospheric pressure (the air outside the syringe)

Answer 2

Answer:

When the piston is pulled up, air pressure inside syringe reduces because of increase in volume. While pressure outside syringe is more than that. So, it pushes liquid into syringe.When you pull, the pressure inside the syringe is reduced below atmospheric pressure (the air outside the syringe). This results in a net force being exerted by the outside air pushing the plunger back into the syringe and the gas inside the syringe pushing outward less strongly.

Explanation:

hope this helps.