Question

2. When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is
seen to escape in the form of bubbles. Once we release the pressure on the bulb, water
gets filled in the dropper. The rise of water in the dropper is due to:

a) Pressure of water b) gravity of the earth
c) Shape of a rubber bulb d) Atmospheric pressure

Answer 1

Answer:

D atmosphereic pressure

Answer 2

Answer:

a - Pressure of water.

Explanation:

After the air has been pushed out of the dropper, the pressure of water outside the dropper becomes more than air pressure inside which pushes the water inside.