A) on top side is more than on lower side
B) on top side is less than on lower side
C) is same on both sides
D) is turbulent
Correct Answer: A
Solution :
The aerofils are so designed that \[{{P}_{\text{upper}\,\text{side}}}<{{P}_{\text{lower}\,\text{side}}}\] so that the aerofils get a lifting force in upward direction. According to Bernoullis theorem, where the pressure is large, the velocity will be minimum or vice-versa. Thus, \[{{v}_{\text{upper}\,\text{side}}}>{{v}_{\text{lower}\,\text{side}}}\]You need to login to perform this action.
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