Physics · 2023
JEE Main · 29 January 2023, Shift 2 · Q7
A fully loaded boeing aircraft has a mass of 5.4 × 10^5 kg. Its total wing area is 500 m^2. It is in level flight with a speed of 1080 km / h. If the…
A fully loaded boeing aircraft has a mass of $\displaystyle 5.4 \times 10^5 \mathrm{~kg}$. Its total wing area is $\displaystyle 500 \mathrm{~m}^2$. It is in level flight with a speed of $\displaystyle 1080 \mathrm{~km} / \mathrm{h}$. If the density of air $\displaystyle \rho$ is $\displaystyle 1.2 \mathrm{~kg} \mathrm{~m}^{-3}$, the fractional increase in the speed of the air on the upper surface of the wing relative to the lower surface in percentage will be. $\displaystyle \left(g=10 \mathrm{~m} / \mathrm{s}^2\right)$
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 10$
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.