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11th Class Physics Mechanical Properties of Fluids / तरलों के यांत्रिक गुण Question Bank Mechanical Properties of Fluids Conceptual Problems

  • question_answer
    Why the passengers are advised to remove the ink from their pens while going up in an aeroplane?

    Answer:

                    We know that atmospheric pressure decreases with height. Since ink inside the pen is filled at the atmospheric pressure existing on the surface of earth, it tends to come out to equalise the pressure. This can spoil the clothes of the passengers, so they are advised to remove the ink from the pen.


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