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JAMB Physics 1987 Question 27

Question 27

Waves

A wave has a frequency of 2 Hz and a wavelength of 30 cm. The velocity of the wave is

  1. A.60.0 m s−1
  2. B.6.0 m s−1
  3. C.1.5 m s−1
  4. D.0.6 m s−1.
Show the answer and explanation

Answer: D (0.6 m s−1.)

Explanation

v = fλ = 2 × 0.30 = 0.6 m s−1.