$A$ wave travelling in the positive $x-$direction with amplitude $A = 0.2\;m$ has a velocity of $v = 360\;m/s.$ If the wavelength $\lambda = 60\;m,$ then the correct expression for the wave is:

  • A
    $y = 0.2\sin \left[ {2\pi \left( {6t + \frac{x}{{60}}} \right)} \right]$
  • B
    $y = 0.2\sin \left[ {\pi \left( {6t + \frac{x}{{60}}} \right)} \right]$
  • C
    $y = 0.2\sin \left[ {2\pi \left( {6t - \frac{x}{{60}}} \right)} \right]$
  • D
    $y = 0.2\sin \left[ {\pi \left( {6t - \frac{x}{{60}}} \right)} \right]$

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