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Applications of Bernoulli's theorem can ...

Applications of Bernoulli's theorem can be seen in

A

dynamic lift of aeroplane

B

hydroulic press

C

helicopter

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
The shape of the aeroplane wings is such that when it moves forward, the air molecules at the top of the wings have a greater velocity (relative to the wings) compared to the air molecules at the bottom. Therefore in accordance with Bernoulli's principle , the pressure at the top of the wings is less than that at the bottom. This results in a dynamic lift of the wings which balances the weight of the plane.
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