A wave travelling in positive $x-$direction with $A = 0.2\;m$ has a velocity of $360 \;m/sec.$ if $\lambda = 60\;m,$ then 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$y = 0.2\sin \,\left[ {\pi \left( {6t - \frac{x}{{60}}} \right)} \right]$
AIPMT 2002, Medium
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