Question

Ravi travelled from Kolkata to Lucknow by an aeroplane. He was carrying an ink pen in the pocket of his
shirt. He found that shirt got stained. Explain​

Answer 1

Answer:

We know that as aeroplane goes up, the atmospheric pressure decreases with height. Since the ink present inside the pen is filled at the atmospheric pressure present on the surface of earth, so as the aeroplane gains height, the pressure inside the pen being more than outside, the ink tends to come out to equalise the pressure, which may spoil the cloths of the passengers. That is why the passengers are advinsed to remove the ink from their pens before taking flight.

Explanation:

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