The amplitude of a particle executing $SHM$ about $O$ is $10\, cm.$ Then :
  • AWhen the $K.E.$ is $0.64$ of its max. $K.E.$ its displacement is $6\,cm$ from $O.$
  • BWhen the displacement is $5\, cm$ from $O$ its $K.E.$ is $0.75$ of its max. $P.E.$
  • CIts total energy at any point is equal to its maximum $K.E.$
  • D
    all of the above
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