A steel wire with mass per unit length $7.0 \times 10^{-3}\,kg\,m ^{-1}$ is under tension of $70\,N$. The speed of transverse waves in the wire will be $.........m/s$

  • [JEE MAIN 2023]
  • A

    $200$

  • B

    $100$

  • C

    $10$

  • D

    $50$

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