Physics · Electromagnetic Waves
Which of the following describes a key characteristic of non-mechanical or electromagnetic waves?
- 1They propagate only through longitudinal structural displacements
- 2They do not require a material medium and can propagate through a vacuum✓
- 3They can only travel through solid materials
- 4They require a material medium for their propagation
Correct answer
They do not require a material medium and can propagate through a vacuum
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