Question

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

1) pressure of water
2) gravity of the earth
3) shape of rubber bulb
4) atmospheric pressure​

Answer 1

Answer:

The correct answer is option(d) i.e. atmospheric pressure

The correct answer is option(d) i.e. atmospheric pressureWhen we press the nozzle the air escapes out due to pressure and the when we release the nozzle the liquid flows into to balance the atmospheric pressure.

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Answer 2

Answer:

d is a correct answer

atmospheric pressure