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JAMB Physics 2006 Question 34

Question 34

Waves

The frequency of the wave in the diagram above is

Diagram for this question
  1. A.1.05 Hz.
  2. B.0.17 Hz.
  3. C.1.57 Hz.
  4. D.0.25 Hz.
Show the answer and explanation

Answer: D (0.25 Hz.)

Explanation

The graph completes one full cycle between t = 0 and t = 4.0 s, so the period T = 4 s and f = 1/T = 0.25 Hz.