The period of a simple pendulum of length 80.0cm was found to have doubled when…

Physics WAEC 2009

The period of a simple pendulum of length 80.0cm was found to have doubled when the length of the pendulum was increased by X. Calculate X.

  • 26.7cm
  • 40.0cm
  • 160.0cm
  • 240.0cm checkmark

The correct answer is: D

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