The wave equation is given by $Y = A \sin \omega \left( \frac{x}{v} - k \right)$,where $\omega$ is the angular velocity and $v$ is the linear velocity. What is the dimension of $k$?

  • A
    $LT$
  • B
    $T$
  • C
    $T^{-1}$
  • D
    $T^2$

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