If a particle under S.H.M. has time period 0.1 sec and amplitude $2\times {10}^{-3}\mathrm{m}$ . It has maximum velocity

• A

  $\frac{\mathrm{\pi }}{25}\mathrm{m}\text{}/\text{}\mathrm{s}$

• B

  $\frac{\mathrm{\pi }}{26}\mathrm{m}\text{}/\text{}\mathrm{s}$

• C

  $\frac{\mathrm{\pi }}{30}\mathrm{m}\text{}/\text{}\mathrm{s}$

• D

  None of these