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why electromagnetic wave is transverse?
Electromagnetic waves are considered transverse because they oscillate perpendicular to the direction of propagation. This means that the electric and magnetic fields are perpendicular to each other and to the direction of the wave's travel.
Transverse electromagnetic waves differ from longitudinal waves in their direction of oscillation. While transverse waves oscillate perpendicular to the direction of propagation, longitudinal waves oscillate in the same direction as the wave's travel.
Light is an example of a transverse electromagnetic wave. It consists of oscillating electric and magnetic fields that are perpendicular to each other and to the direction of the light's travel.
Transverse electromagnetic waves are able to travel through a vacuum because they do not require a medium to propagate. The oscillating electric and magnetic fields can exist and travel through empty space.
Transverse electromagnetic waves have many practical applications, including communication technologies such as radio, television, and cell phones. They are also used in medical imaging, such as X-rays and MRI scans, and in scientific research for studying the properties of matter.