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Question 31339
JEE Physics · Hard

Waves on String: Harmonics MCQ

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HarmonicsHardQuestion 31339

Question

String fixed at both ends vibrates in nth harmonic. Wavelength of the nth harmonic is:
  1. A
    nL
  2. B
    2L/n
    Correct
  3. C
    nL/2
  4. D
    L/n

Correct answer

2L/n

Explanation

f_n = nv/(2L). v = fλ. λ_n = v/f_n = 2L/n.

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