Three particles having their charges in the ratio of $1 : 3 : 5$ produce the same spot on the screen in Thomson’s experiment. Their masses are in the ratio of

  • A

    $5 : 3 : 1$

  • B

    $3 : 1 : 5$

  • C

    $1 : 3 : 5$

  • D

    $5 : 1 : 3$

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