Question

розсол 1 апа с
When we press the bulb of a dropper, with its nozzle kept under water, air in
the dropper is seen to escape in the form of bubbles. If we then release the
pressure on the bulb, water gets filled in the dropper. The rise of water in the
dropper is due to-
weight of the bulb
pressure of water in the container
gravity of the earth
atmospheric pressure​

Answer 1

Explanation:

Water rises in the dropper due to atmospheric pressure. When bulb is pressed, air present in tube and bulb escapes in the form of bubbles. However, there is atmospheric pressure on surface of liquid. When we release the bulb, the water moves inside the tube