The graph shows the variation of displacement of a particle executing S.H.M. with time. We infer from this graph that
AThe force is zero at time $3T/4$
BThe velocity is maximum at time $T/2$
C
The acceleration is maximum at time T
DThe P.E. is equal to total energy at time $T/2$
Medium
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DThe P.E. is equal to total energy at time $T/2$
d (d)At time $\frac{T}{2};\;v = 0$ $\therefore $Total energy = Potential energy.
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