A transverse progressive wave on a stretched string has a velocity of $10\,m{s^{ - 1}}$ and a frequency of $100 Hz.$ The phase difference between two particles of the string which are $2.5 cm$ apart will be
  • A$\frac{\pi }{8}$
  • B$\frac{\pi }{4}$
  • C$\frac{{3\pi }}{8}$
  • D$\frac{\pi }{2}$
Medium
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