A) dynamic lift of aeroplane
B) hydraulic press
C) helicopter
D) none of the above
Correct Answer: A
Solution :
Key Idea: According to Bernoulli's theorem for a flowing gas, where velocity is increased the pressure is decreased and vice-versa. The wing of aeroplane is so designed that the curvature of its upper surface is greater than that of lower surface and its front end is shaped round while back end is flattened.You need to login to perform this action.
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