If the initial velocity of a projectile be doubled, keeping the angle of projection same, the maximum height reached by it will
Remain the same
Be doubled
Be quadrupled
Be halved
If the initial velocity of a projectile be doubled, keeping the angle of projection same, the maximum height reached by it will
$H = \frac{{{u^2}{{\sin }^2}\theta }}{{2g}}\,$
$\therefore \,\,H \propto {u^2}.$
If initial velocity be doubled then maximum height reached by the projectile will quadrupled.