The diagram below shows as instantaneous position of a string as a transverse progressive wave travels along it from left to right Which one of the following correctly shows the direction of the velocity of the points $1,2$ and $3$ on the string
  • A$1 -  \to ,\,2 -  \to ,\,3 -  \to $
  • B$1 -  \leftarrow ,\,2 -  \leftarrow ,\,3 -  \leftarrow $
  • C$1 -  \downarrow ,\,2 -  \downarrow ,\,3 -  \downarrow $
  • D$1 -  \downarrow ,\,2 -  \uparrow ,\,3 -  \downarrow $
Medium
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