Physics 2000 JAMB Past Questions - Question 17: 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

Correct Answer

C

Explanation

When a vibrator is attached to one end of a long wire and energized, it can generate two types of waves in the wire:

1. Transverse Waves: If the vibrator is set up to oscillate in a direction perpendicular to the length of the wire, it will generate transverse waves. In this case, the individual particles of the wire will move perpendicular to the direction of the wave propagation. Transverse waves are characterized by crests and troughs, much like the ripples on the surface of water.

2. Longitudinal Waves: If the vibrator is set up to oscillate in a direction parallel to the length of the wire, it will generate longitudinal waves. In this case, the particles of the wire will move parallel to the direction of the wave propagation, resulting in compressions and rarefactions. Longitudinal waves are commonly seen in phenomena like sound waves.

The type of wave generated depends on how the vibrator is configured and the direction in which it causes the particles of the wire to move. The choice between transverse and longitudinal waves can have significant implications for the behavior and characteristics of the wave as it propagates through the wire.