A stretched string is divided into three segments of lengths $50\,cm,\,\,40\,cm$ and $10\,cm$ with the help of bridges. Their vibrations will have frequencies in the ratio

  • A

    $5 : 4 : 1$

  • B

    $1 : 4 : 5$

  • C

    $4 : 5 : 20$

  • D

    $4 : 5 : 10$

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