Grade 10General Physics
what is the role of atmospheric pressure in drawing of underground water by a hand pump??
1 Answer
SAGAR SINGH - IIT DELHI
Dear student,
Because suction is involved, atmospheric pressure is what's really doing the work. Think of the system as a long straw. As you suck on the straw, you create a vacuum in the straw above the water. Once the vacuum is there, the weight of the air, or atmospheric pressure, pushes the water up the straw.
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