JEE Physics · Easy

Simple Harmonic Motion: Definition of SHM MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Definition of SHMEasyQuestion 31102

Question

The acceleration in SHM is given by:
  1. A
    a = ωx
  2. B
    a = −ω²x
    Correct
  3. C
    a = ω²x
  4. D
    a = −ωx

Correct answer

a = −ω²x

Explanation

a = F/m = −kx/m = −ω²x where ω = √(k/m). Negative sign shows acceleration opposes displacement.