What Are The Types Of Waves?

Waves are disturbances in space; most waves require a material medium to pass through while some can pass through vacuum. The waves that require a material medium to pass are known as mechanical waves like for example sound waves while waves that do not require a medium and can pass through vacuum are known as electromagnetic waves like light or radio waves. Another kind of waves are matter or particle waves like for example alpha rays emitted by radioactive substances which are comprised of streams of alpha particles.

Mechanical waves can further be classified into three types depending on the nature of displacement of the particles of the medium. The waves which cause the particles of the medium to be displaced in a direction perpendicular to the direction of the propagation of the waves are known as transverse waves while the waves which cause the particles to be displaced in a direction parallel to the direction of propagation are known as longitudinal waves. In some cases like for example ocean waves both transverse as well as longitudinal waves are observed and are known as surface waves in physics

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