The weight of an aeroplane flying in the air is balanced by
A
Vertical component of the thrust created by air currents striking the lower surface of the wings
B
Force due to reaction of gases ejected by the revolving propeller
C
Upthrust of the air which will be equal to the weight of the air having the same volume as the plane
D
Force due to the pressure difference between the upper and lower surfaces of the wings created by different air speeds on the surfaces
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D
Force due to the pressure difference between the upper and lower surfaces of the wings created by different air speeds on the surfaces
d (d)Application of Bernoulli's theorem.
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