JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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Application +4 | -1

An aeroplane of mass

3 \times {10^4}

kg and total wing area of

120{\mathrm{m}^2}

is in a level flight at some height. The difference in pressure between the upper and lower surface of its wings in kilo pascals is

\left( {\mathrm{g} = 10\mathrm{m}{\mathrm{s}^{ - 2}}} \right)

View answer and explanation

Correct option: A

2.5

Option A (2.5) is correct because the pressure difference is calculated by dividing the weight of the airplane by the wing area, resulting in 2.5 kPa.

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