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NEET 1993 (AIPMT) · Energy in SHM

Energy in SHM question from NEET 1993 (AIPMT)

Q85NEET 1993 · AIPMTEasy

Energy in SHM

A body executes simple harmonic motion with an amplitude AA. At what displacement from the mean position is the potential energy of the body is one fourth of its total energy?

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Answer: (b)

  1. PEE=x2A2\frac{PE}{E} = \frac{x^2}{A^2}
  2. x2A2=14⇒x=A2\frac{x^2}{A^2} = \frac{1}{4} \Rightarrow x = \frac{A}{2}
  3. So the answer is (b) A/2A/2.
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