Question

Vaibhav took an empty bottle and an empty jar of the same size. He opened the lid of both bottle and jar. Then after he tried to push an inverted bottle and a jar in a bucket filled with water one after the other . What do you think did he observe?​

Answer 1

Explanation:

Air pressure. The water is trying to get up into the bottle from underneath, which means that the air inside has nowhere to go. As water tries to push into the bottle, it compresses the air, causing the air pressure to rise, which pushes back against the water.