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      Question

      The time period of a secondโ€™s pendulum is

      โ€“
      A 1 second Correct Answer Incorrect Answer
      B 2 seconds Correct Answer Incorrect Answer
      C 0.5 second Correct Answer Incorrect Answer
      D 1.5 seconds Correct Answer Incorrect Answer

      Solution

      A seconds pendulum is a pendulum whose period is precisely two seconds;onesecondforaswinginonedirection andonesecondforthereturnswing,afrequency of1/2Hz.Atstandardgravityitslengthis0.994 m.

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