JEE Physics · Easy

Waves on String: Harmonics MCQ

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

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HarmonicsEasyQuestion 31322

Question

For a string fixed at both ends, fundamental frequency (1st harmonic) is:
  1. A
    v/L
  2. B
    v/2L
    Correct
  3. C
    2v/L
  4. D
    v/4L

Correct answer

v/2L

Explanation

Both ends are nodes. λ/2 = L → λ = 2L. f₁ = v/λ = v/(2L).