An aeroplane with wings |Projectile Motion|JEE-MAIN

JEE MAIN 2021

26.02.2021_S2

Question

An aeroplane, with its wings spread 10 m , is flying at a speed of $180 \mathrm{~km} / \mathrm{h}$ in a horizontal direction. The total intensity of earth's field at that part is 2.5 $\times 10^{-4} \mathrm{~Wb} / \mathrm{m}^2$ and the angle of dip is $60^{\circ}$. The emf induced between the tips of the plane wings will be :-

Select the correct option:

$\tan ^{-1} \alpha, \frac{\alpha^2}{4 \beta}$

$\tan ^{-1} \beta, \frac{\alpha^2}{2 \beta}$

$\tan ^{-1} \alpha, \frac{4 \alpha^2}{\beta}$

$\tan ^{-1}\left(\frac{\beta}{\alpha}\right), \frac{\alpha^2}{\beta}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution