Question

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GIVE REASON on filling of ink into a fountain pen

i need full explanation with correct key words used i not need bookish language or copied answer

this q... is 4 10 points and the 1st one 2 answr with all my rules followed will be marked as brainliest one

Answer 1

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⭐⭐ Filling of ink into a fountain pen ⭐⭐

➡ As a syringe is filled with a liquid due to the atmospheric pressure, ink also gets filled in a fountain pen. Actually, when the rubber tube of fountain pen is pressed, almost all the air of rubber tube expels out in the form of bubbles through the ink.

➡ When the rubber tube is released, the pressure inside the rubber tube is much less than the atmospheric pressure acting on the ink. As a result, the ink rises into the tube through the capillary below the nib if the pen.

✨ ICSE WILL LOOK INTO YOUR KEYWORDS.

✨ KEYWORDS ARE :- Syringe, atmospheric pressure, nib, rubber tube (inside the ink), capillary below the nib, pressure on the ink and nib.

✨✨✨✨ ALWAYS BE BRAINLY ✨✨✨✨