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justwild
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Can anybody tell me the basics of EM waves...like what constitutes EM wave...what is displaced...what are electric and magnetic field components...?
Electromagnetic waves are a type of energy that is made up of oscillating electric and magnetic fields. They are created by the movement of electrically charged particles and can travel through a vacuum or through various materials.
Electromagnetic waves have several important properties, including wavelength, frequency, and amplitude. Wavelength is the distance between two consecutive peaks or troughs of the wave. Frequency is the number of waves that pass a given point in one second. Amplitude is the height of the wave from its resting position.
Electromagnetic waves are produced when an electric charge accelerates or changes direction. This can happen naturally, such as in lightning strikes, or artificially, such as in electronic devices. The frequency of the wave is determined by the rate at which the charge is moving.
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. It includes all types of electromagnetic waves, from low-frequency radio waves to high-frequency gamma rays. The different types of waves have different properties and uses.
Electromagnetic waves have a wide range of applications in our daily lives, including communication, transportation, and medical imaging. Some common examples include radio waves for broadcasting, microwaves for cooking, infrared waves for remote controls, and X-rays for medical imaging.