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Question

The lift of an air plane is based on

A
TorriceIIi's theorem
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B
Bernoulli's theorem
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C
Law of gravitation
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D
Conservation of .linear momentum
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Solution

The correct option is B Bernoulli's theorem
Then Newton's third law requires the air to exert an
upward force on the airfoil; thus a reaction force, life,
is generated opposite to the directional change. In
the case of an airplane wing, the wing exerts a
downward force on the air and the air exerts an
upward force on the wing.

467052_430659_ans_65d1e75a5cb543e9ac6d989d03b5a616.png

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