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Question 31128
JEE Physics · Medium

Simple Harmonic Motion: PE Variation MCQ

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PE VariationMediumQuestion 31128

Question

Potential energy in SHM varies with time as:
  1. A
    Linear
  2. B
    sin(ωt)
  3. C
    sin²(ωt) (or cos²(ωt))
    Correct
  4. D
    cos(ωt)

Correct answer

sin²(ωt) (or cos²(ωt))

Explanation

x = A sin(ωt), PE = ½kx² = ½kA²sin²(ωt). PE varies as sin² (or cos²) at frequency 2ω.

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