Longitudinal and Transverse Waves
Longitudinal Waves - When the wave particle's movement (propagation) is parallel to the energy transfer. For example, Sound waves are longitudinal waves.
Transverse Waves - When the wave particle's movement (propagation) is perpendicular to the the energy transfer. For example, Light is a transverse wave.
All EM (electromagnetic) waves are transverse waves, because the magnetic field and electric field is perpendicular to the wave propagation. why?
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