Understanding liquid pressure - English

[anu]

This experiment is so helpful... 👏Superb!

[raghavrathore]

amazing sir. i understand all facts about pressure thank u

[pediyeay]

Wrong. When you push the tube down in the glass of water, the pressure of water doesn't have an effect on the height difference in the tubes. What makes the difference is the fact that you are compressing the already existing air in the tube that you are pushing into the water. The volume of it decreases and so the pressure of it increases and then the height difference in the tubes appears. If the height difference in the tube was caused by the water pressure of the glass, the height difference in the tubes would be the same as the depth of the glass water, which isn't. I experimented this today.