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JAMB Physics 2000 Question 17

Question 17

Waves

One end of a long wire is fixed while a vibrator is attached to the other end. When the vibrator is energized, the types of waves generated in the wire are

  1. A.stationary and transverse
  2. B.progressive and transverse
  3. C.stationary and longitudinal
  4. D.progressive and longitudinal
Show the answer and explanation

Answer: A (stationary and transverse)

Explanation

The vibrator shakes the wire sideways, making transverse waves; these reflect at the fixed end and combine with the incoming waves to form stationary waves.