Question

10. 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 rubber bulb.
(d) atmospheric pressure.​

Answer 1

Answer:

d) Atmospheric pressure applied on the water surface which pushes it in the tubes which is at low pressure at that time.

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