Answer :
What transpires inside a drinking straw that has been placed in a cup of water is an illustration of capillary action.
The water will rise inside the straw a little bit higher than the rest of the water because the force of adhesion holding the water together and to the straw is a little stronger than gravity.
- The adhesion of water molecules to other molecules, or the attraction between them, is also connected to these cohesive forces.
- This may be seen when a straw is placed in a glass of water and water "climbs" up the straw. You'll see that the water seems to be higher on the straw's sides than in the center.
- When we suck from a straw, a low-pressure area is generated inside our lungs by increasing the capacity of our lungs.
- As a result, the liquid rises inside the straw as a result of the atmospheric pressure forcing it into our mouth from the outside.
Learn more about capillary action here:
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