Electromagnetic wave
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An electromagnetic wave is a wave that is formed by the oscillation of electric and magnetic fields. These waves are characterized by their frequency, wavelength, and amplitude. Examples of electromagnetic waves include radio waves, microwaves, infrared waves, visible light, ultraviolet rays, X-rays, and gamma rays. Electromagnetic waves can travel through a vacuum and do not require a medium to propagate. They play a crucial role in communication, photography, medicine, and many other fields.