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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
    An aeroplane runs for some distance the runway before taking off. Why?

    Answer:

                    Generally, air does not strike an aeroplane with a large velocity. To get the lift, the aeroplane runs for some distance on the runway before taking off. Due to its special shape, the velocity of air above the plane increase and hence pressure decreases. The aeroplane gets uplift.


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