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Waves on String: Standing Waves MCQ

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Standing WavesMediumQuestion 31363

Question

String fixed at both ends of length 3 m vibrates in 6th harmonic at 300 Hz. Wave speed is:
  1. A
    100 m/s
  2. B
    150 m/s
  3. C
    300 m/s
    Correct
  4. D
    50 m/s

Correct answer

300 m/s

Explanation

f₆ = 6v/(2L) = 6v/6 = v. So v = 300 m/s.

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