The motion of a particle executing $S.H.M.$ is given by $x = 0.01\sin 100\pi (t + .05)$, where $x$ is in metres and time is in seconds. The time period is ..... $\sec$
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(b) $\omega = \frac{{2\pi }}{T} = 100\pi$
$\Rightarrow T = 0.02\;\sec $
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