The motion of a simple pendulum excuting $S.H.M$. is represented by following equation.

$Y = A \sin (\pi t +\phi)$, where time is measured in $second$.

The length of pendulum is .............$cm$

  • A$97.23$
  • B$25.3$
  • C$99.4$
  • D$406.1$
JEE MAIN 2022, Medium
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