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A particle execute SHM along a straight line. The amplitude of oscillation is \( 2 \mathrm{~cm} \). When displacement of particle from the mean position is
\( P \) \( 1 \mathrm{~cm} \), the magnitude of its acceleration is equal to magnitude of its velocity. The time period of
W. oscillation is
(1) \( \frac{2 \pi}{\sqrt{2}} \)
(2) \( \frac{\sqrt{2}}{2 \pi} \)
(3) \( \frac{2 \pi}{\sqrt{3}} \)
(4) \( \frac{\sqrt{3}}{2 \pi} \)
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