The plot of velocity $(v)$ versus displacement $(x)$ of a particle executing simple harmonic motion is shown in figure. The time period of oscillation of particle is .........
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(a)
$A=10 \,cm \quad A \omega=0.4 \,m / s$
$=0.1 \,m$
$\therefore \omega =4 \,rad / s$
$T=\frac{2 \pi}{4}=\frac{\pi}{2} s$
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