The force of interaction between two atoms is given by $F\, = \,\alpha \beta \,\exp \,\left( { - \frac{{{x^2}}}{{\alpha kt}}} \right);$ where $x$ is the distance, $k$ is the Boltzmann constant and $T$ is temperature and $\alpha $ and $\beta $ are two constants. The dimension of $\beta $ is

  • [JEE MAIN 2019]
  • A

    $M^0L^2T^{-4}$

  • B

    $M^2LT^{-4}$

  • C

    $MLT^{-2}$

  • D

    $M^2L^2T^{-2}$

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