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JAMB Physics 2002 Question 29

Question 29

Waves

If tension is maintained on a stretched string of length 0.6m, such that its fundamental frequency of 220Hz is excited, determine the velocity of the transverse wave in the string.

  1. A.66ms−1
  2. B.132ms−1
  3. C.264ms−1
  4. D.528ms−1
Show the answer and explanation

Answer: C (264ms−1)

Explanation

For the fundamental, λ = 2L = 1.2 m, so v = fλ = 220 × 1.2 = 264 m s−1.