JEE Physics · Medium

Waves on String: Wave Speed MCQ

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

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Wave SpeedMediumQuestion 31309

Question

In a guitar, thicker strings produce lower notes because:
  1. A
    They are longer
  2. B
    Higher μ → lower v → lower fundamental frequency
    Correct
  3. C
    They vibrate slower electrically
  4. D
    Fret spacing is wider

Correct answer

Higher μ → lower v → lower fundamental frequency

Explanation

f₁ = v/(2L) = √(T/μ)/(2L). Higher μ → lower v → lower f₁. Same tension and length, thicker (heavier) string sounds lower.