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Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Motion in a Plane
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Two bodies are projected at angles $\theta$ and $(90^{\large\circ}-\theta)$ with the horizontal at the same speed.The ratio of their maximum heights is

$\begin{array}{1 1}1 : 1\\1 : \tan \theta\\\tan \theta : 1\\\tan^2\theta : 1\end{array} $

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Answer : $\tan^2\theta : 1$
$h_{max}=\large\frac{v^2\sin^2\theta}{2g}$
$h'_{max}=\large\frac{v^2\sin^2(90-\theta)}{2g}$
or $h'_{max}=\large\frac{v^2\cos^2\theta}{2g}$
Dividing,
$\large\frac{h_{max}}{h'_{max}}=\frac{\sin^2\theta}{\cos^2\theta}=\frac{\tan^2\theta}{1}$
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