Physics, asked by sarnyabhatt, 4 days ago

Why do we need to press the bulb of the dropper while filling ink in a pen?

Answers

Answered by vinayakhil2018
2

Answer:

Due to air pressure, the water in the dropper increases. The air in the tube and the bulb escapes in the form of bubbles when the bulb is squeezed. Because of this, pressure decreases inside the bulb.

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