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Which of the following examples represent (nearly) simple harmonic motion and which represent periodic but not simple harmonic motion ? (a) The rotation of earth about its axis. (b) Motion of an oscillating mercury column in a U tube, (c) Motion of a ball bearing inside a smooth curved bowl, when released from a point slightly above the lower most position.(d) General vibrations of a polyatomic molecule about its equilibrium position.

Answer» <html><body><p></p>Solution :(a) It is <a href="https://interviewquestions.tuteehub.com/tag/periodic-598580" style="font-weight:bold;" target="_blank" title="Click to know more about PERIODIC">PERIODIC</a> but not S.H.M. because it is not to and fro motion about a fixed <a href="https://interviewquestions.tuteehub.com/tag/point-1157106" style="font-weight:bold;" target="_blank" title="Click to know more about POINT">POINT</a>.<br/> (b) It is S.H.M., (c) It is S.H.M. (d) <br/> It is a periodic but not S.H.M. A <a href="https://interviewquestions.tuteehub.com/tag/polyatomic-7748145" style="font-weight:bold;" target="_blank" title="Click to know more about POLYATOMIC">POLYATOMIC</a> gas molecule has a number of <a href="https://interviewquestions.tuteehub.com/tag/natural-575613" style="font-weight:bold;" target="_blank" title="Click to know more about NATURAL">NATURAL</a> frequencies and its <a href="https://interviewquestions.tuteehub.com/tag/general-471730" style="font-weight:bold;" target="_blank" title="Click to know more about GENERAL">GENERAL</a> motion is the resultant of S.H.Ms. of a number of different frequencies. The resultant motion is periodic but not S.H.M.</body></html>


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