Q. 153.5( 2 Votes )
Which of the foll A. Force acting is directly proportional to displacement from the mean position and opposite to it.
B. Motion is periodic.
C. Acceleration of the oscillator is constant.
D. The velocity is periodic.
For SHM to take place force must be proportional to displacement and opposite to it.
Consider the SHM equation for displacement,
Differentiating above w.r.t time t,
∴ velocity is periodic.
Differentiating once again w.r.t time, t,
acceleration is not constant but periodic.
Thus, option (a), (b) and (d) are correct.
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