A wave represented by the given equation $Y = A\sin \left( {10\,\pi \,x + 15\,\pi \,t + \frac{\pi }{3}} \right)$, where $x$ is in meter and $t$ is in second. The expression represents
  • AA wave travelling in the positive $X$ direction with a velocity of $1.5 \,m/sec$
  • BA wave travelling in the negative $X$ direction with a velocity of $1.5\, m/sec$
  • CA wave travelling in the negative $ X$ direction with a wavelength of $ 0.2\, m$
  • DBoth $(b)$ and $(c)$
IIT 1990, Medium
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