A particle executes linear simple harmonic motion with an amplitude of $2\, cm$. When the particle is at $1\, cm$ from the mean position the magnitude of its velocity is equal to that of its acceleration. Then its time period in seconds is
  • A$\frac{1}{{2\pi \sqrt 3 }}$
  • B$2\pi \sqrt 3 $
  • C$\frac{{2\pi }}{{\sqrt 3 }}$
  • D$\frac{{\sqrt 3 }}{{2\pi }}$
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