Added : 3 mounth ago
according to the medium of propagation, waves can be classified into two groups: mechanical waves and
electromagnetic waves. mechanical waves . are the ones that require a medium to propagate. for example, sound waves travel through the air or some other material. on the other hand,
electromagnetic waves, like light waves, don’t need a medium to propagate, because they may travel through a ... sound propogation in a medium,...
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