A ball of mass $m$ is thrown vertically upward. Another ball of mass $2\,m$ is thrown an angle $\theta$ with the vertical. Both the balls stay in air for the same period of time. The ratio of the heights attained by the two balls respectively is $\frac{1}{x}$. The value of $x$ is $.....$

  • [JEE MAIN 2022]
  • A

    $1$

  • B

    $2$

  • C

    $6$

  • D

    $6$

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