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MHT CET 2023 (10 May, Shift 1) · Energy in SHM

Energy in SHM question from MHT CET 2023 (10 May, Shift 1)

Q36MHT CET 2023 · 10 MAY · SHIFT 1Easy

Energy in SHM

The amplitude of a particle executing S.H.M. is 3 cm3\text{ cm}. The displacement at which its kinetic energy will be 25%25\% more than the potential energy is

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Answer: (b)

  1. KE=1.25 PE⇒A2−x2=1.25x2KE = 1.25\,PE \Rightarrow A^2 - x^2 = 1.25x^2
  2. 2.25x2=9⇒x=2 cm2.25x^2 = 9 \Rightarrow x = 2\text{ cm}
  3. So the answer is (b) 2 cm.
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