A particle is performing S.H.M. starting from extreme position. Graphical representation shows that, between displacement and acceleration, there is a phase difference of
A
0rad
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B
π4rad
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C
π2rad
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D
πrad
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Solution
The correct option is Dπrad Displacement of the particle executing SHM is given by x=Acoswt
Differentiating it w.r.t. time we get v=dxdt=−Awsinwt
Differentiating it again w.r.t. time we get acceleration as a=dvdt=−Aw2coswt
⟹a=Aw2cos(wt+π)
Thus phase difference between displacement and acceleration is π radian.